A broadband low profile microstrip filter-antenna with an omni-directional pattern

Author

Wei-Jun Wu ; Jun Wang ; Rong Fan ; Qi Zhang

Author_Institution

China Ship Dev. & Design Center, Sci. & Technol. on Electromagn. Compatibility Lab., Wuhan, China

fYear

2014

fDate

26-29 July 2014

Firstpage

580

Lastpage

582

Abstract

A broadband low profile microstrip filter-antenna with an omni-directional pattern is presented. A coupled line is used to connect a microstrip antenna and the second resonator of a filter as admittance inverter. In the design, the antenna performs as a radiator; meanwhile it is also the last resonator of the bandpass filter. Therefore, the loss is reduced between the filter and the microstrip antenna. The proposed filter-antenna can provide 15% impedance bandwidth, a low profile of 3.8mm, an omni-directional pattern and high suppression in the stopband. The proposed antenna simulated results are presented.

Keywords

antenna radiation patterns; band-pass filters; broadband antennas; invertors; microstrip antennas; microstrip filters; omnidirectional antennas; resonator filters; admittance inverter; bandpass filter; broadband low profile microstrip filter antenna; coupled line; impedance bandwidth; omnidirectional pattern; second resonator; Band-pass filters; Broadband antennas; Microstrip antennas; Microstrip filters; Resonator filters; Wireless communication; filter-antenna; low profile; microstrip; omni-directional pattern;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4799-4355-5

Type

conf

DOI

10.1109/APCAP.2014.6992560

Filename

6992560