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A terahertz duplexer across f-g frequency band based on suspended microstrip circuit

A technology of microstrip circuit and duplexer, which is applied in the field of frequency division in the terahertz frequency band, can solve problems such as difficulty in integration, large size of duplexer, and difficulty in structural processing, and achieve high isolation and reduce difficulty

Active Publication Date: 2019-08-20
NAT SPACE SCI CENT CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the frequency separation across frequency bands, the duplexer realized by waveguide devices is large in structure, not easy to integrate, and there are great difficulties in structural processing, so it is difficult to realize the separation of terahertz signals across frequency bands

Method used

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  • A terahertz duplexer across f-g frequency band based on suspended microstrip circuit
  • A terahertz duplexer across f-g frequency band based on suspended microstrip circuit
  • A terahertz duplexer across f-g frequency band based on suspended microstrip circuit

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Embodiment Construction

[0035] Such as figure 1 and 3 As shown, the present invention provides a terahertz duplexer based on a suspended microstrip circuit across the F-G frequency band, which is used for a micro-satellite platform with a compact structure and is easy to process and realize. Separation of different signals across frequency bands. The terahertz duplexer is a cuboid cavity structure, which includes: an upper cavity 8 and a lower cavity 7; the upper cavity 8 is located above the lower cavity 7, and the lower surface of the upper cavity 8 is connected to the lower cavity The upper surface of the cavity 7 is closely attached and fixed together; the suspended microstrip circuit 9, the standard waveguide input channel 24, the first standard waveguide output channel 23, the standard waveguide input channel 24 and the first standard waveguide output channel are arranged at the joint. The channels 23 are distributed at both ends of the suspended microstrip circuit 9 to form a π-shaped struct...

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Abstract

The invention relates to a suspended microstrip circuit-based terahertz duplexer bridging F-G frequency bands. The terahertz duplexer is a cuboid cavity structure and comprises an upper cavity (8) anda lower cavity (7), wherein the upper cavity (8) is formed above the lower cavity (7), a surface of the upper cavity (8) is closely attached onto and fixed with a surface of the lower cavity (7), a suspended microstrip circuit (9), a standard waveguide input passage (24) and a first standard waveguide output passage (23) are arranged at an attachment position, the standard waveguide input passage(24) and the first standard waveguide output passage (23) are arranged at two ends of the suspended microstrip circuit (9) to form a Pi-shaped structure, and a second standard waveguide output passage (25) is arranged between standard waveguide input passage (24) and the first standard waveguide output passage (23).

Description

technical field [0001] The invention belongs to the technical field of frequency division in terahertz frequency bands, and in particular relates to a terahertz duplexer across F-G frequency bands based on a suspended microstrip circuit. Background technique [0002] In recent years, extreme weather events have occurred frequently in my country, and the degree of impact has become increasingly serious, resulting in increasing direct economic losses. Therefore, it is of great significance to forecast and monitor extreme weather such as heavy rain and typhoon. In order to obtain atmospheric temperature and humidity profiles, the main detection frequencies of micro-satellite atmospheric microwave detectors usually include 118GHz (F-band) and 183GHz (G-band). [0003] In terms of technical means to achieve frequency separation, at present, frequency selective surfaces based on quasi-optical principles or waveguide devices based on waveguide bandpass filters are mainly used. Fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20H01P1/203H01P1/207
Inventor 孟进张德海蒋长宏栗晓鹏
Owner NAT SPACE SCI CENT CAS