Suppressing Undesired Common-Mode Resonances in Connected Antenna Arrays

Gilmore, J.; Davidson, David

doi:10.1109/TAP.2015.2478141

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Authors

Gilmore, J.

Davidson, David

Date

2015

Type

Journal Article

Metadata

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Citation

Gilmore, J. and Davidson, D. 2015. Suppressing Undesired Common-Mode Resonances in Connected Antenna Arrays. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. 63 (11): pp. 5245-5250.

Source Title

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

DOI

10.1109/TAP.2015.2478141

ISSN

0018-926X

School

Curtin Institute of Radio Astronomy (Engineering)

URI

http://hdl.handle.net/20.500.11937/72222

Collection

Curtin Research Publications

Abstract

© 2015 IEEE. This paper presents a design of an antenna feed that suppresses common-mode resonances commonly encountered in connected antenna arrays. The design makes use of symmetrical wideband microstrip-slotline transitions to cancel out common-mode signals, while differential signals will still propagate through. The design is verified using both simulations and measurements of a manufactured prototype. A wide bandwidth and a CMRR > 30 dB is achieved that exceeds the design specifications set out.