阅读说明：本技术 一种基于凸台式准波导滤波器的太赫兹倍频器结构 (A kind of Terahertz frequency multiplier structure based on projective table type quasi wave waveguide filter ) 是由 张勇 魏浩淼 李宇 胡江 延波 徐锐敏 于 2019-09-03 设计创作，主要内容包括：本发明公开了一种基于凸台式准波导滤波器的太赫兹倍频器结构,包括输入波导、输出波导以及位于输入波导和输出波导之间的凸台式准波导滤波器；所述凸台式准波导滤波器包括波导屏蔽腔(1)、石英基片(2)、悬置微带导带(3),石英基片(2)和悬置微带导带(3)设置在波导屏蔽腔内,悬置微带导带(3)设置在石英基片(2)的一个侧面上,石英基片的另一个侧面上设有多个凸台结构(4)。本发明通过引入多级凸台支撑形式,为基片提供了更多的支撑面积,创新提出通过采用凸台式准波导滤波器结构,既为基片支撑同时引入滤波作用。本发明提出的结构具有体积小、易于实现等特点,在太赫兹波倍频器中具有良好的应用前景。(The invention discloses a kind of Terahertz frequency multiplier structures based on projective table type quasi wave waveguide filter, including input waveguide, output waveguide and the projective table type quasi wave waveguide filter between input waveguide and output waveguide；The projective table type quasi wave waveguide filter includes waveguide shielding cavity (1), quartz substrate (2), suspension micro-strip conduction band (3), quartz substrate (2) and suspension micro-strip conduction band (3) are arranged in waveguide shielding cavity, it suspends micro-strip conduction band (3) to be arranged on a side of quartz substrate (2), another side of quartz substrate is equipped with multiple boss structures (4).The present invention provides more bearing area by introducing multistage boss supporting form, for substrate, and innovation proposes both to introduce filter action simultaneously by using projective table type Quasi-Waveguide filter construction for substrate support.Structure proposed by the present invention have the characteristics that it is small in size, be easily achieved, have a good application prospect in THz wave frequency multiplier.)

1. a kind of Terahertz frequency multiplier structure based on projective table type quasi wave waveguide filter, which is characterized in that including input waveguide, defeated Waveguide and the projective table type quasi wave waveguide filter between input waveguide and output waveguide out；The projective table type Quasi-Waveguide filtering Device includes waveguide shielding cavity (1), quartz substrate (2), suspends micro-strip conduction band (3), quartz substrate (2) and suspension micro-strip conduction band (3) Be arranged in waveguide shielding cavity, suspension micro-strip conduction band (3) be arranged on a side of quartz substrate (2), quartz substrate it is another One side is equipped with multiple boss structures (4).

2. a kind of Terahertz frequency multiplier structure based on projective table type quasi wave waveguide filter according to claim 1, feature It is, the waveguide shielding cavity and quartz substrate are rectangular parallelepiped structure, the length and width and waveguide shielding cavity of quartz substrate Identical, the thickness of quartz substrate is less than waveguide shielding cavity；Quartz substrate is arranged in the middle part of waveguide shielding cavity, and the one of quartz substrate Multiple boss structures are uniformly arranged on a side, the other side of boss structure is adjacent with the medial surface of waveguide shielding cavity.

Technical field

The present invention relates to a kind of Terahertz frequency multiplier structures based on projective table type quasi wave waveguide filter.

Background technique

The electromagnetic wave that wavelength is 3mm~30um is known as THz wave, and long-wave band is bordered by millimeter wave, and short-wave band leans on near-infrared Line, the intersection region in electronics and photonics.Compared with the microwave compared with low-frequency range, they the characteristics of be: 1, the frequency utilized Spectral limit is wide, and information capacity is big.2, the antenna of Yi Shixian narrow beam and high-gain, thus high resolution, anti-interference are good.3, it wears The ability of saturating plasma is strong.4, Doppler frequency shift is big, and test the speed high sensitivity.THz wave is in communication, radar, guidance, remote sensing There is great meaning in terms of technology, radio astronomy and Wave Spectrum.

Frequency multiplier is a two-port network, and output signal frequency is the integral multiple of frequency input signal, passes through filter Selection obtain need fundamental wave frequency multiplication frequency, be a kind of producing method of microwave signal.When frequency is increased to terahertz wave band When in range, manufacturing, there is the base frequency oscillation device of good power, stability and noise characteristic to become more difficult.One kind is replaced The method in generation is exactly that the oscillator of lower frequency is made to generate higher order harmonics using frequency multiplier, and THz wave frequency multiplier source is exactly a kind of It is different from inexpensive, the highly reliable Terahertz wave source of electronic device and solid-state diode oscillator.

When THz wave frequency multiplier is as frequency source, that is, require certain output power.Due to realizing solid-state frequency multiplication Device mainly uses microwave semiconductor device, and extremely small in Terahertz frequency range microwave semiconductor device, and frequency multiplication at home For circuit frequently with manual assembly mode, this assembly leads to substrate concave deformation easily to reduce output, in order to obtain it is higher and Stablize output power, substrate can only be shortened to prevent from deforming.

Summary of the invention

It is an object of the invention to overcome the deficiencies of the prior art and provide one kind by introducing multistage boss supporting form, More bearing area are provided for substrate, it had both been substrate branch that innovation, which is proposed by using projective table type Quasi-Waveguide filter construction, It supports while introducing filter action, have the characteristics that the Terahertz based on projective table type quasi wave waveguide filter that is small in size, being easily achieved Frequency multiplier structure.

The purpose of the present invention is achieved through the following technical solutions: it is a kind of based on projective table type quasi wave waveguide filter too Hertz frequency multiplier structure, including input waveguide, output waveguide and the projective table type standard between input waveguide and output waveguide Waveguide filter；The projective table type quasi wave waveguide filter includes waveguide shielding cavity, quartz substrate, suspension micro-strip conduction band, quartzy base Piece and suspension micro-strip conduction band are arranged in waveguide shielding cavity, and suspension micro-strip conduction band is arranged on a side of quartz substrate, stone Another side of English substrate is equipped with multiple boss structures.

Further, the waveguide shielding cavity and quartz substrate are rectangular parallelepiped structure, the length and width of quartz substrate Identical as waveguide shielding cavity, the thickness of quartz substrate is less than waveguide shielding cavity；The middle part of waveguide shielding cavity is arranged in quartz substrate, Multiple boss structures, the other side of boss structure and the medial surface of waveguide shielding cavity are uniformly arranged on one side of quartz substrate It is adjacent.

The beneficial effects of the present invention are: the present invention then passes through the multistage boss supporting form of introducing, provided more for substrate Bearing area, since boss can give substrate to play a supporting role, thus using long substrate will not deformation downwards become The design of long substrate may be implemented in shape；The present invention innovates proposition by using projective table type Quasi-Waveguide filter construction, can either be Substrate plays a supporting role while can also play filter effect.Structure proposed by the present invention have it is small in size, be easily achieved Feature has a good application prospect in THz wave frequency multiplier.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the Terahertz frequency multiplier structure of the invention based on projective table type quasi wave waveguide filter；

Fig. 2 is the structural schematic diagram of projective table type quasi wave waveguide filter of the invention；

Fig. 3 is the HFSS simulation model of projective table type quasi wave waveguide filter of the invention；

Fig. 4 is S parameter diagram of Fig. 3 model of the present invention in HFSS；

Description of symbols: 1- waveguide shielding cavity, 2- quartz substrate, 3- suspend micro-strip conduction band, 4- boss structure.

Specific embodiment

Technical solution of the present invention is further illustrated with reference to the accompanying drawing.

As shown in Figure 1, a kind of Terahertz frequency multiplier structure based on projective table type quasi wave waveguide filter, including input waveguide, Output waveguide and the projective table type quasi wave waveguide filter between input waveguide and output waveguide；The projective table type Quasi-Waveguide filter Wave device includes waveguide shielding cavity 1, quartz substrate 2, suspension micro-strip conduction band 3, and quartz substrate 2 and suspension micro-strip conduction band 3 are arranged in wave It leads in shielding cavity, suspension micro-strip conduction band 3 is arranged on a side of quartz substrate 2, sets on another side of quartz substrate There are multiple boss structures 4.

Further, the waveguide shielding cavity and quartz substrate are rectangular parallelepiped structure, the length and width of quartz substrate Identical as waveguide shielding cavity, the thickness of quartz substrate is less than waveguide shielding cavity；The middle part of waveguide shielding cavity is arranged in quartz substrate, Multiple boss structures, the other side of boss structure and the medial surface of waveguide shielding cavity are uniformly arranged on one side of quartz substrate It is adjacent.

Fig. 2 is the structural schematic diagram of projective table type quasi wave waveguide filter.Similar waveguide filter structure takes multistage unilateral Plateau form forms periodic structure and forms filtering, then carries out further output filtering by output waveguide.The top of boss and outstanding Dielectric substrate (i.e. quartz substrate) bottom for setting micro-strip is exactly in contact with, and forms support.Fig. 3 is the HFSS simulation model of the structure, Must contact with substrate bottom at the top of boss of the present invention can just play a supporting role, can root for the width of boss, spacing It is optimized according to working frequency to reach expected filter effect, the width of boss is less than shielding cavity width such as in Fig. 3 , it is equipped with 5 boss structures altogether；Boss structure only needs to play enough supporting roles.By the number for changing boss The variables such as amount, width, length, spacing can be designed the filter under different application.Fig. 4 is S of Fig. 3 model in HFSS Parameter diagram, i.e. a low-pass filter structure.Projective table type Quasi-Waveguide filter construction of the invention is different from traditional frequency multiplication electricity CMRC (compact micro-band resonance unit) filter on road, the filtering performance of the width alignment waveguide filter of suspension micro-strip conduction band Influence it is smaller, by its appropriately designed width, can directly make suspension micro-strip at input suspension microstrip probe and diode into Row matching, (entire suspension micro-strip conduction band forms a frequency multiplication branch plus diode, shielding cavity, quartz substrate as shown in Figure 1. The effect of diode is exactly to form frequency multiplication).In input probe, CMRC low-pass filtering when so there is no need to as traditional Design of frequency multiplier Device, diode three between carry out Match circuits, to substantially reduce circuit design size.

Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field Those of ordinary skill disclosed the technical disclosures can make according to the present invention and various not depart from the other each of essence of the invention The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.