阅读说明：本技术 馈电耦合器 (Feed coupler ) 是由 周德宏 于 2020-06-08 设计创作，主要内容包括：本发明涉及一种馈电耦合器,包括耦合器本体,所述耦合器本体上设置输入端口、输出端口和耦合输出端口,所述耦合器本体内部设置负载、馈电模块,所述输入端口连接输出端口,所述输入端口输入信号和电源,所述输出端口输出部分信号和电源,所述馈电模块的输入端连接输入端口,输入部分信号和电源,所述馈电模块的输出端分两路,一路连接耦合输出端口,用于输出信号和电源,另一路连接负载。本发明耦合器可以对输出端口和耦合输出端口线路进行供电,有效地解决了线路所融合的各种器件供电问题；提升系统稳定性,系统性线路馈电。(The invention relates to a feed coupler which comprises a coupler body, wherein an input port, an output port and a coupling output port are arranged on the coupler body, a load and a feed module are arranged in the coupler body, the input port is connected with the output port, signals and power are input into the input port, part of signals and power are output from the output port, the input end of the feed module is connected with the input port and part of signals and power are input into the input port, the output end of the feed module is divided into two paths, one path is connected with the coupling output port and is used for outputting the signals and the power, and the other path is connected with the load. The coupler can supply power to the output port and the coupled output port circuit, thereby effectively solving the problem of power supply of various devices fused by the circuit; the stability of the system is improved, and systematic circuit feeding is realized.)

1. The utility model provides a feed coupler, its characterized in that, includes the coupler body, set up input port, output port and coupling output port on the coupler body, inside load, the feed module of setting up of coupler body, input port connection output port, input port incoming signal and power, output port output part signal and power, input port, input part signal and power are connected to the input of feed module, the output of feed module divides two tunnel, connects coupling output port all the way for output signal and power, another way connection load.

2. The feed coupler of claim 1, wherein the feed module comprises a filter feed module and a feed isolation module, the input end of the filter feed module is connected with the input port of the coupler body, the filter feed module is connected with the feed isolation module, and the feed isolation module is connected with a load and an impedance matching resistor R.

3. The feed coupler of claim 2, wherein the filter feed module comprises capacitors C1, C2, C3 and inductors L1, L2, the feed isolation module is a capacitor C4, input ends of the capacitor C1 and the inductor L1 are connected to the input port of the coupler body, an output end of the inductor L1 is connected to a capacitor C2, a capacitor C4 and an inductor L2, an output end of the inductor L2 is connected to a capacitor C3 and a coupling output port, and output ends of the capacitors C1, C2 and C3 are grounded.

4. A feed coupler according to claim 1, wherein the coupling output port is connected to an external composite antenna for providing signals and power to the composite antenna.

Technical Field

The invention relates to the field of couplers, in particular to a feed coupler.

Background

The traditional passive coupler is just coupled signal output, cannot provide power supply for a coupling output end circuit, needs to get electricity on site, and has the following problems in getting electricity on site: the installation site needs to be separately provided with a power supply device, so that the system cost is high; because the field condition is limited and the UPS can not be in the same path with the UPS of the machine room, a local no-signal fault can be caused by the interruption of the field power supply; the existing antenna feeder coupler and power divider are passive devices and cannot transmit power in a system circuit.

Disclosure of Invention

The invention aims to provide a feed coupler, which is used for solving the problems that a passive coupler in the prior art needs to take power on site, so that the system cost is high, and no signal exists in the field power supply interruption.

The invention provides a feed coupler which comprises a coupler body, wherein an input port, an output port and a coupling output port are arranged on the coupler body, a load and a feed module are arranged in the coupler body, the input port is connected with the output port, signals and power are input into the input port, the output port outputs partial signals and power, the input end of the feed module is connected with the input port and inputs partial signals and power, the output end of the feed module is divided into two paths, one path is connected with the coupling output port and is used for outputting the signals and the power, and the other path is connected with the load.

Furthermore, the feed module comprises a filtering feed module and a feed isolation module, the input end of the filtering feed module is connected with the input port of the coupler body, the filtering feed module is connected with the feed isolation module, and the feed isolation module is connected with a load and an impedance matching resistor R.

Further, the filter feeding module includes capacitors C1, C2, C3 and inductors L1, L2, the feeding isolation module is a capacitor C4, input ends of the capacitor C1 and the inductor L1 are connected to an input port of the coupler body, an output end of the inductor L1 is connected to a capacitor C2, a capacitor C4 and an inductor L2, an output end of the inductor L2 is connected to a capacitor C3 and a coupling output port, and output ends of the capacitors C1, C2, and C3 are grounded.

Furthermore, the coupling output port is connected with an external composite antenna to provide signals and power for the composite antenna.

The technical scheme of the invention has the beneficial effects that:

the coupler can supply power to the output port and the coupled output port circuit, thereby effectively solving the problem of power supply of various devices fused by the circuit; the system stability is improved, systematic circuit feeding is realized, and whether the working state of each equipment device is normal can be detected in time through a circuit power supply detection system; the feed isolation module is arranged to realize the isolation of the power supply and the signal, and avoid the unnecessary heating of the power supply loop aggravated load resistor formed by the power supply flowing to the matching resistor R and the load.

Drawings

FIG. 1 is a schematic diagram of a feed coupler according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

in the drawings, the components represented by the respective reference numerals are listed below:

1-coupler body, 2-input port, 3-output port, 4-coupled output port, and 5-load.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

As shown in fig. 1-2, the present invention provides a feed coupler, including a coupler body 1, where the coupler body 1 is provided with an input port 2, an output port 3, and a coupling output port 4, a load 5 and a feed module are arranged inside the coupler body 1, the input port 2 is connected to the output port 3, the input port 2 inputs signals and power, the output port 3 outputs partial signals and power, an input end of the feed module is connected to the input port 2, partial signals and power, an output end of the feed module is divided into two paths, one path is connected to the coupling output port 4 for outputting signals and power, and the other path is connected to the load 5.

The feed module comprises a filtering feed module and a feed isolation module, the input end of the filtering feed module is connected with the input port 2 of the coupler body 1, the filtering feed module is connected with the feed isolation module, and the feed isolation module is connected with a load 5 and an impedance matching resistor R.

The filter feeding module comprises capacitors C1, C2, C3, inductors L1 and L2, the feeding isolation module is a capacitor C4, the input ends of the capacitors C1 and the inductors L1 are connected with an input port 2 of the coupler body 1, the output end of the inductor L1 is connected with a capacitor C2, a capacitor C4 and an inductor L2, the output end of the inductor L2 is connected with a capacitor C3 and a coupling output port 4, and the output ends of the capacitors C1, C2 and C3 are grounded.

And the coupling output port 4 is connected with an external composite antenna and provides signals and power for the composite antenna.

In this embodiment, a composite signal (signal + power) in a previous-stage line enters the feed-type coupler through the input port 2 of the coupler, one path of the composite signal can directly output a composite signal of the signal plus power from the output port 3 to a next-stage line, the other path of the composite signal passes through a matching filtering feed module formed by C1, L1, C2, L2 and C3 and outputs the signal and the power to the coupling output port 4, the C4 feed isolation module realizes isolation of the power and the signal, and avoids the situation that the power flows to the R matching resistor and the load 5 to form an unnecessary power loop and aggravates heating of the resistance of the load 5; the mixed signal output by the coupling output port 4 is supplied to a composite antenna (a Bluetooth positioning or Internet of things sensor) with different functions or lower-level line equipment, so that the problem of power supply of multi-level equipment connected with a coupler is solved.

In conclusion, no matter the coupler can supply power to the output port 3 or the coupled output end line, the power supply problem of various devices fused by the line is effectively solved; the stability of the system is improved, systematic circuit feed can be realized, and whether the working state of each equipment device is normal can be detected in time through a circuit power supply detection system.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.