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Compact design of a planar filtering antenna array including a frequency selective common-mode rejection module

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Author: Cifola, L. · Cavallo, D. · Gerini, G. · Morini, A.
Source:Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012, 8-14 July 2012, Chicago, IL, USA
Identifier: 466611
doi: doi:10.1109/APS.2012.6348809
Keywords: Arrays · Bandwidth · Dipole antennas · Equivalent circuits · Impedance · Microstrip · Resonant frequency · Defence Research · Defence, Safety and Security · Physics & Electronics · RT - Radar Technology · TS - Technical Sciences


A new compact design of a planar phased-array antenna with inherent frequency selectivity properties is presented. In previous works, starting from an array of connected dipoles, the design of a filtenna structure and a strategy for the suppression of common-mode resonances have been addressed. In the present approach, a compact design solution has been obtained by the integration of part of the filtering function in the common-mode rejection module, consisting in a planar hybridring. As proved by simulation results, scanning up to 45 ° for the H-plane and up to 30 ° for the E-plane is achieved with a relative bandwidth of 21%. © 2012 IEEE.