Millimeter wave broadband filtering antenna

Abstract

The invention provides a millimeter wave broadband filtering antenna, which is characterized in that a first microstrip radiation unit is arranged on a first dielectric layer, a second microstrip radiation unit is arranged on a second dielectric layer, and the second microstrip radiation unit is coupled with the first microstrip radiation unit; the fourth dielectric layer is provided with a stripline feed network, the strip line feed network comprises a strip line feed line, a first short-circuit triangular patch and a second short-circuit triangular patch coupled with the first short-circuittriangular patch, and the second short-circuit triangular patch is coupled with the second microstrip radiation unit; a microstrip line feeder line is arranged at the bottom of the fifth dielectric layer; the microstrip line feed line is connected with the strip line feed line, and on the basis, the first short-circuit triangular patch, the second short-circuit triangular patch, the second microstrip radiation unit and the first microstrip radiation unit form four resonators, so that the effect of four-order broadband filtering is achieved, and the impedance bandwidth of the filtering antennais expanded.

Description

technical field [0001] The present invention relates to the technical field of millimeter waves, and more specifically, to a millimeter wave broadband filter antenna. Background technique [0002] With the rapid development of the fifth-generation mobile communication (5G) technology, the functions of microwave and millimeter wave systems are becoming more and more complex, and the requirements for electrical performance indicators are getting higher and higher. At the same time, it is also required to be smaller and lighter in size. That is to say, the whole system is developing in the direction of miniaturization, light weight, broadband and low cost. [0003] Since the broadband millimeter-wave antenna with filtering characteristics can effectively reduce the impact of out-of-band signals on the system, reduce the system's index requirements for filter design, and can meet the requirements of system miniaturization, therefore, the millimeter-wave broadband filter antenna ...

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Problems solved by technology

[0004] Although extensive research has been carried out on millimeter-wave filter antennas in the prior art, and a series of technical achievements have been formed, most of the current millimeter-wave filter antennas have relatively narrow bandwidths, and there are still gaps in the application of millimeter-wave 5G broadband The need to improve

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