This paper presents a novel structure of a compact microstrip filtering patch antenna with asymmetric gain response. A rectangle patch antenna is excited by open-loop resonators through apertures in the co-grounded plane. This coupled patch not only produces three reflection zeros to increase the bandwidth of the antenna, but also generates a radiation null at one side of the band edge to improve selectivity. The design and simulation process follow the design method of a third-order cascade trisection (CT) bandpass filter. This integration approach eliminates the 50 Ohm interfaces between the cascaded filter and antenna while achieving an enhanced frequency selectivity. Measured results of the fabricated circuits show a good agreement with the simulation results.
|Title of host publication||2020 50th European Microwave Conference, EuMC 2020|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Number of pages||4|
|ISBN (Electronic)||9782874870590, 9782874870583 (USB)|
|ISBN (Print)||9781728170398 (PoD)|
|Publication status||Published - 2 Feb 2021|
|Event||50th European Microwave Conference, EuMC 2020 - Utrecht, Netherlands|
Duration: 12 Jan 2021 → 14 Jan 2021
|Name||European Conference on Microwave|
|Conference||50th European Microwave Conference, EuMC 2020|
|Period||12/01/21 → 14/01/21|
Bibliographical noteFunding Information:
ACKNOWLEDGMENT This work was supported by UK EPSRC under Contract EP/M013529/1, and National Nature Science Foundation of China under Grant 61971415&61601456.
© 2021 EuMA.
- asymmetric gain response
- band-pass filters
- filtering antenna
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials