Double-frequency duplexer based on substrate integrated waveguide
A substrate-integrated waveguide and duplexer technology, which is applied to waveguide-type devices, electrical components, circuits, etc., can solve the problems of bulky metal waveguides, difficult integration, and failure of microstrip lines, and achieves simple design structure and increased size Gain, easy industrial processing effect
Active Publication Date: 2019-09-06
NANJING UNIV OF POSTS & TELECOMM
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Abstract
The invention discloses a double-frequency duplexer based on a substrate integrated waveguide. The double-frequency duplexer comprises a filter dielectric substrate, a top metal layer arranged on theupper surface of the filter dielectric substrate, a bottom metal layer arranged on the lower surface of the filter dielectric substrate, and a metal layer arranged between the upper surface of the filter dielectric substrate and the lower surface of the filter dielectric substrate; T-shaped output ports are formed in the metal layers on the upper surface and the lower surface of the filter mediumsubstrate; and an input feed network is arranged on the middle metal layer. The double-frequency duplexer is simple in design structure and easy for industrial processing; firstly a miniaturized double-frequency SIW-based double-frequency duplexer is introduced, so that the problem of relatively large size of a filter is solved to a relatively great extent; and secondly, the input feed network structure of the middle metal layer is introduced, so that the gain based on the SIW filter is further increased, and a foundation is laid for improvement of the passband gain of the double-frequency SIWfilter and improvement of the echo loss.
Application Domain
Waveguide type devices
Technology Topic
Dielectric substratePassband +5
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PUM
Property | Measurement | Unit |
Impedance | 50.0 | Ω |
Return loss | 13.5 | z |
Description & Claims & Application Information
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Classification and recommendation of technical efficacy words
- Ease of industrial processing
- Simple design