A Tunable Siw Integrated Filter/Antenna

Keywords

Bandpass filter; Slot antenna; Varactor

Abstract

A tunable 3-D filter/antenna integration implementation is presented herein. The tunable integrated device consists of a tunable coaxial substrate integrated waveguide (SIW) resonator coupled to a tunable cavity-backed slot antenna. The filter/antenna synthesis presented in this work follows closely with traditional filter synthesis with the antenna coupling energy to free space used as the second external coupling port of the device. The filter/antenna is frequency tunable from 1.71 - 2.88 GHz (51%) with a fractional bandwidth range of 2.90 - 8.10%, gain of -3.14 - 2.61 dBi, overall efficiency between 26.3 and 82.6%, and cross polarization level better than 20 dB in all cases.

Publication Date

10-18-2017

Publication Title

2017 IEEE Antennas and Propagation Society International Symposium, Proceedings

Volume

2017-January

Number of Pages

2181-2182

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/APUSNCURSINRSM.2017.8073133

Socpus ID

85042198763 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85042198763

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