Band-stop filter effect of multiple slots in mobile phone antennas

Corbett Rowell; Edmund Y. Lam

doi:10.1109/APS.2012.6348018

Band-stop filter effect of multiple slots in mobile phone antennas

Corbett Rowell, Edmund Y. Lam

School of Engineering and Digital Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

A slot placed between the feed and the ground connections of a single shorted microstrip antenna in a two antenna system can produce a band-stop filter effect in one of the frequency bands where both antennas radiate at the same frequency. This band-stop filter effect creates a large group delay at a particular frequency anti-resonance and depends on the slot parameters and the feed/ground placement relative to the second antenna. This paper will show that a second slot can produce an additional band-stop anti-resonance to create two bandstop frequencies. The antenna geometry analyzed is a two planar inverted-F antenna system inside a mobile device where the first antenna with slots has both lower band and high band resonances (quad-band GSM or dual-band LTE) and the second antenna is a wide-band single frequency antenna at LTE/3G/WiMAX.

Original language	English
Title of host publication	2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings
DOIs	https://doi.org/10.1109/APS.2012.6348018
Publication status	Published - Dec 10 2012
Event	Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012 - Chicago, IL, United States Duration: Jul 8 2012 → Jul 14 2012

Publication series

Name	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)	1522-3965

Other

Other	Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012
Country	United States
City	Chicago, IL
Period	7/8/12 → 7/14/12

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/APS.2012.6348018

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Band-stop filter effect of multiple slots in mobile phone antennas. / Rowell, Corbett; Lam, Edmund Y.

2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings. 2012. 6348018 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Rowell, C & Lam, EY 2012, Band-stop filter effect of multiple slots in mobile phone antennas. in 2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings., 6348018, IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012, Chicago, IL, United States, 7/8/12. https://doi.org/10.1109/APS.2012.6348018

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abstract = "A slot placed between the feed and the ground connections of a single shorted microstrip antenna in a two antenna system can produce a band-stop filter effect in one of the frequency bands where both antennas radiate at the same frequency. This band-stop filter effect creates a large group delay at a particular frequency anti-resonance and depends on the slot parameters and the feed/ground placement relative to the second antenna. This paper will show that a second slot can produce an additional band-stop anti-resonance to create two bandstop frequencies. The antenna geometry analyzed is a two planar inverted-F antenna system inside a mobile device where the first antenna with slots has both lower band and high band resonances (quad-band GSM or dual-band LTE) and the second antenna is a wide-band single frequency antenna at LTE/3G/WiMAX.",

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