A Miniaturized Switchable SIW-CBS Antenna Using Positive and Negative Order Resonances Conference Paper

abstract

• A switchable SIW-CBS antenna with two different operating bands using a new switching method is presented. The method uses the reactive loading effect of shortening posts inside the cavity to change the overall resonance order from negative to positive. In order to achieve the negative order resonance, a composite right/left-handed (CRLH) structure is used by inserting an interdigital slot on the top side of a SIW cavity instead of a conventional rectangular slot. Using a two-layer substrate structure the antenna is totally isolated from the biasing circuit. Thus, the operating resonance frequency can be easily tuned by switching the posts using p-i-n diodes. Using this technique and by switching between the negative and positive order resonances, a frequency tuning ratio (fTR=fup/flow) of 2.7 (1.83-4.93 GHz) is achieved. The antenna shows similar radiation patterns with high purity and front-to-back ratio for both operating bands. 2013 IEEE.

name of conference

• 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)

authors

• Entesari, Kamran

published proceedings

• 2013 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI)

author list (cited authors)

• Saghati, A. P., & Entesari, K.

citation count

• 7

complete list of authors

• Saghati, Alireza Pourghorban||Entesari, Kamran

publication date

• July 2013

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society)  Journal

Digital Object Identifier (DOI)

• 10.1109/aps.2013.6710943

International Standard Book Number (ISBN) 13

• 9781467353175

start page

• 566

end page

• 567

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Faps.2013.6710943