阅读说明：本技术 射频电路开关芯片、射频电路、天线装置及电子设备 (Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment ) 是由 丛明 冯斌 于 2017-05-10 设计创作，主要内容包括：一种射频电路开关芯片,可以通过第一开关、第二开关不同的接通状态,实现收发高频信号、中频信号或低频信号,或者收发高频信号与低频信号的载波聚合信号,或者收发中频信号与低频信号的载波聚合信号。本发明还提供一种射频电路、天线装置及电子设备。(A kind of radio frequency switching circuit chip, on-state that can be different by first switch, second switch, realize transmitting-receiving high-frequency signal, intermediate-freuqncy signal or low frequency signal, perhaps it receives and dispatches the carrier aggregation signal of high-frequency signal and low frequency signal or receives and dispatches the carrier aggregation signal of intermediate-freuqncy signal and low frequency signal.The present invention also provides a kind of radio circuit, antenna assembly and electronic equipments.)

A radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits a carrier aggregation signal, wherein the carrier aggregation signal is a carrier aggregation signal of a high-frequency signal and a low-frequency signal or a carrier aggregation signal of an intermediate-frequency signal and a low-frequency signal.

The radio frequency circuit switch chip of claim 1, wherein the radio frequency circuit switch chip has a first output port and a second output port, the first and second filters being connected to the first and second output ports, respectively.

The radio frequency circuit switch chip of claim 2, wherein the first output port is connected to a second output port to form a third output port.

The radio frequency circuit switch chip of claim 3, wherein an output impedance of the first filter is equal to an output impedance of the second filter, and an output impedance of the third output port is equal to an output impedance of the first and second filters.

The radio frequency circuit switch chip of claim 1, wherein the first and second filters are each grounded.

The radio frequency circuit switch chip of claim 1, wherein the first impedance adjuster is an inductor or a capacitor.

The radio frequency circuit switching chip of claim 1, wherein the second impedance adjuster is an inductor or a capacitor.

The radio frequency circuit switch chip of claim 1, wherein the first switch and the second switch are each a single-pole, multi-throw switch.

A radio frequency circuit comprises a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, wherein the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are connected in sequence;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits a carrier aggregation signal, wherein the carrier aggregation signal is a carrier aggregation signal of a high-frequency signal and a low-frequency signal or a carrier aggregation signal of an intermediate-frequency signal and a low-frequency signal.

The radio frequency circuit of claim 9, wherein the radio frequency transceiver includes a high frequency port, an intermediate frequency port, and a low frequency port, the high frequency port and the intermediate frequency port each connected to an input of the first switch, the low frequency port connected to an input of the second switch.

The radio frequency circuit of claim 10, wherein the high frequency ports include N1 sub transmission ports of different frequency bands and N1 sub reception ports of different frequency bands, the input terminal of the first switch includes N1 high frequency sub input ports, the N1 sub transmission ports are connected to the N1 high frequency sub input ports one by one, and the N1 sub reception ports are connected to the N1 high frequency sub input ports one by one;

the intermediate frequency port comprises N2 sub transmitting ports of different frequency bands and N2 sub receiving ports of different frequency bands, the input end of the first switch further comprises N2 intermediate frequency sub input ports, the N2 sub transmitting ports are connected with the N2 intermediate frequency sub input ports one by one, and the N2 sub receiving ports are connected with the N2 intermediate frequency sub input ports one by one;

the low-frequency ports comprise N3 sub transmitting ports with different frequency bands and N3 sub receiving ports with different frequency bands, the input end of the second switch comprises N3 low-frequency sub input ports, the N3 sub transmitting ports are connected with the N3 low-frequency sub input ports one by one, and the N3 sub receiving ports are connected with the N3 low-frequency sub input ports one by one;

wherein N1, N2 and N3 are all natural numbers larger than 1.

The radio frequency circuit of claim 11, wherein a power amplifier is connected between each sub-transmit port of the high frequency port and each corresponding high frequency sub-input port of the first switch, between each sub-transmit port of the intermediate frequency port and each corresponding intermediate frequency sub-input port of the first switch, and between each sub-transmit port of the low frequency port and each corresponding low frequency sub-input port of the first switch.

The radio frequency circuit of claim 11, wherein a diplexer or filter is connected between each sub-transmit port of the high frequency port and each corresponding high frequency sub-input port of the first switch, between each sub-transmit port of the intermediate frequency port and each corresponding intermediate frequency sub-input port of the first switch, and between each sub-transmit port of the low frequency port and each corresponding low frequency sub-input port of the first switch.

The radio frequency circuit of claim 9, wherein the output of the first filter and the output of the second filter are both connected to the antenna.

The radio frequency circuit of claim 9, wherein the antenna comprises a first sub-antenna and a second sub-antenna, an output of the first filter being connected to the first sub-antenna, and an output of the second filter being connected to the second sub-antenna.

An antenna device comprises a radio frequency circuit, wherein the radio frequency circuit comprises a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, and the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are sequentially connected;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits a carrier aggregation signal, wherein the carrier aggregation signal is a carrier aggregation signal of a high-frequency signal and a low-frequency signal or a carrier aggregation signal of an intermediate-frequency signal and a low-frequency signal.

An electronic device comprises a shell and a circuit board, wherein the circuit board is installed inside the shell, a radio frequency circuit is arranged on the circuit board, the radio frequency circuit comprises a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, and the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are sequentially connected;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits a carrier aggregation signal, wherein the carrier aggregation signal is a carrier aggregation signal of a high-frequency signal and a low-frequency signal or a carrier aggregation signal of an intermediate-frequency signal and a low-frequency signal.

The electronic device of claim 17, wherein the radio frequency transceiver includes a high frequency port, an intermediate frequency port, and a low frequency port, the high frequency port and the intermediate frequency port each connected to the input of the first switch, the low frequency port connected to the input of the second switch.

The electronic device of claim 17, wherein an output of the first filter and an output of the second filter are both connected to the antenna.

The radio frequency circuit of claim 17, wherein the antenna comprises a first sub-antenna and a second sub-antenna, an output of the first filter being connected to the first sub-antenna, and an output of the second filter being connected to the second sub-antenna.

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a radio frequency circuit switch chip, a radio frequency circuit, an antenna device, and an electronic apparatus.

Background

With the development of communication technology, more and more communication frequency bands can be supported by the mobile terminal. For example, an LTE (Long term evolution) communication signal may include a signal having a frequency between 700MHz and 2700 MHz.

Radio frequency signals that can be supported by a mobile terminal can be divided into low frequency signals, intermediate frequency signals, and high frequency signals. The low-frequency signal, the intermediate-frequency signal and the high-frequency signal respectively comprise a plurality of sub-frequency band signals. Each sub-band signal needs to be transmitted to the outside world via an antenna.

Thus, a Carrier Aggregation (CA) technique has been produced. Through carrier aggregation, a plurality of sub-frequency band signals can be aggregated together to improve the uplink and downlink transmission rate of the network.

Currently, the frequency resources of the various communication markets around the world are different from each other. Communication operators in different areas have different communication spectrum allocations, so that different frequency band combination requirements of carrier aggregation exist, and a frequency band requirement that carrier aggregation does not need to be performed also exists. However, the frequency band of the radio frequency signal or the carrier aggregation signal that can be received and transmitted by the current mobile terminal is single, and the diversity is lacking, so that the above requirements cannot be met.

Technical problem

The embodiment of the invention provides a radio frequency circuit switch chip, a radio frequency circuit, an antenna device and electronic equipment, which can improve the diversity of receiving and transmitting radio frequency signals of the electronic equipment.

Technical solution

In a first aspect, an embodiment of the present invention provides a radio frequency circuit switch chip, where the radio frequency circuit switch chip includes a first switch, a second switch, a first filter, a second filter, a first impedance adjuster, and a second impedance adjuster, the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter, and the first impedance adjuster are sequentially connected, and the second switch, the second filter, and the second impedance adjuster are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits carrier aggregation signals, wherein the carrier aggregation signals are carrier aggregation signals of high-frequency signals and low-frequency signals or carrier aggregation signals of medium-frequency signals and low-frequency signals.

In a second aspect, an embodiment of the present invention further provides a radio frequency circuit, where the radio frequency circuit includes a radio frequency transceiver, a radio frequency circuit switch chip, and an antenna, and the radio frequency transceiver, the radio frequency circuit switch chip, and the antenna are sequentially connected;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits carrier aggregation signals, wherein the carrier aggregation signals are carrier aggregation signals of high-frequency signals and low-frequency signals or carrier aggregation signals of medium-frequency signals and low-frequency signals.

In a third aspect, an embodiment of the present invention further provides an antenna apparatus, where the antenna apparatus includes a radio frequency circuit, the radio frequency circuit includes a radio frequency transceiver, a radio frequency circuit switch chip, and an antenna, and the radio frequency transceiver, the radio frequency circuit switch chip, and the antenna are sequentially connected;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits carrier aggregation signals, wherein the carrier aggregation signals are carrier aggregation signals of high-frequency signals and low-frequency signals or carrier aggregation signals of medium-frequency signals and low-frequency signals.

In a fourth aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes a housing and a circuit board, the circuit board is installed inside the housing, the circuit board is provided with a radio frequency circuit, the radio frequency circuit includes a radio frequency transceiver, a radio frequency circuit switch chip and an antenna, and the radio frequency transceiver, the radio frequency circuit switch chip and the antenna are connected in sequence;

the radio frequency circuit switch chip comprises a first switch, a second switch, a first filter, a second filter, a first impedance regulator and a second impedance regulator, wherein the first switch outputs a high-frequency signal or an intermediate-frequency signal, the second switch outputs a low-frequency signal, the first switch, the first filter and the first impedance regulator are sequentially connected, and the second switch, the second filter and the second impedance regulator are sequentially connected;

when the first switch is switched on and the second switch is switched off, the radio frequency circuit switch chip receives and transmits a high-frequency signal or an intermediate-frequency signal;

when the first switch is turned off and the second switch is turned on, the radio frequency circuit switch chip receives and transmits low-frequency signals;

when the first switch and the second switch are simultaneously switched on, the radio frequency circuit switch chip receives and transmits carrier aggregation signals, wherein the carrier aggregation signals are carrier aggregation signals of high-frequency signals and low-frequency signals or carrier aggregation signals of medium-frequency signals and low-frequency signals.

Advantageous effects

The embodiment of the invention provides a radio frequency circuit switch chip, a radio frequency circuit, an antenna device and electronic equipment, which can improve the diversity of receiving and transmitting radio frequency signals of the electronic equipment.

Drawings

Fig. 1 is an exploded schematic view of an electronic device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a second structure of the rf circuit according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of a third structure of the rf circuit according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of a fourth structure of the rf circuit according to the embodiment of the present invention.

Fig. 7 is a schematic diagram of a first structure of a rf circuit switch chip according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a second structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 9 is a schematic diagram of a third structure of a rf circuit switch chip according to an embodiment of the present invention.

Fig. 10 is a schematic diagram of a fourth structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 11 is a schematic diagram of a fifth structure of the rf circuit switch chip according to the embodiment of the present invention.

Fig. 12 is a schematic diagram of a fifth structure of the rf circuit according to the embodiment of the present invention.

Fig. 13 is another schematic structural diagram of an electronic device according to an embodiment of the present invention.