Miniaturized double-layer substrate integrated waveguide six-port device

Abstract

The invention discloses a miniaturized double-layer substrate integrated waveguide six-port device, which includes a top layer dielectric substrate, a bottom layer dielectric substrate and a middle layer metal layer that are stacked and attached to each other, and the upper surface of the top layer dielectric substrate is provided with a top layer The metal layer, the lower surface of the bottom dielectric substrate is provided with the bottom metal layer; the top dielectric substrate and the bottom dielectric substrate are provided with two groups of mutually symmetrical metallized through holes, and the metallized through holes are connected with the top metal layer and the top dielectric substrate. The first substrate integrated waveguide is formed by the chip and the middle layer metal layer; the second substrate integrated waveguide is formed by the metallized through hole and the bottom metal layer, the bottom dielectric substrate and the middle layer metal layer; three ports are arranged on the top layer metal layer and set There are a plurality of complementary split resonant rings; two rows of mutually symmetrical round holes are opened on the metal layer of the middle layer; three ports are arranged on the bottom metal layer. The invention has the advantages of simple design structure, wide six-port stable output working bandwidth, compact structure, reduced processing difficulty and cost, and reduced volume.

Description

technical field [0001] The invention relates to a miniaturized substrate-integrated waveguide device, in particular to a miniaturized double-layer substrate-integrated waveguide six-port device, which belongs to the field of microwave technology. Background technique [0002] Six-port technology was first used to measure the complex reflection coefficient of microwave circuits. With the further development of science and technology, six-port devices have been more widely used in power measurement systems and receiver systems. The performance of the six ports directly affects the accuracy of the entire measurement system, especially in some precision measurement systems such as cosmic microwave background radiation, any improvement in the performance of the device will greatly improve the accuracy of the entire system. As a transceiver in a communication system, six ports are also widely used in various modulation and demodulation systems, but the traditional waveguide six-po...

AI Technical Summary

Problems solved by technology

As a transceiver in a communication system, the six-port is also widely used in various modulation and demodulation systems, but the traditional waveguide six-port device has a three-dimensional structure, large volume, and is not easy to integrate, and the traditional substrate The integrated waveguide six-port device is also mainly a single-layer circuit board. This structure has the same shortcomings as above, and these shortcomings greatly limit the scope of application of the six-port

Images