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Co‐design of a filtering antenna based on multilayer structure
Author(s) -
Cui Jingyu,
Zhang Anxue,
Yan Sen
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22096
Subject(s) - computer science , antenna (radio) , electronic engineering , dielectric resonator antenna , antenna factor , impedance matching , bandwidth (computing) , acoustics , antenna measurement , engineering , electrical impedance , electrical engineering , resonator , telecommunications , physics
In this paper, a co‐design of filtering antenna based on multilayer structure is proposed for modern wireless communication systems. The filtering antenna system consists of a filtering network partly designed on two dielectric substrates and a Г‐shaped antenna, which performs as both a radiator and the last order of the filter. An effective co‐design method based on parameter extraction for impedance matching can significantly reduce the optimization time. Furthermore, a slot is grooved on the common ground, which is shared by the antenna and the filter to realize the feeding of the resonator. A prototype of the filtering antenna was fabricated and measured, and a good agreement is achieved. The tested results show that the filtering antenna features a 2.7% bandwidth, 2.2 dBi gain at 2.6 GHz and −20 dB out of band rejection at 5 × f 0 . The size of the design is 0.29λ g × 0.23λ g .