Common-mode rejection in a phased-array filtenna of connected dipoles

Author

Cifola, Lorenzo ; Cavallo, Daniele ; Gerini, Giampiero ; Savoia, Silvio ; Morini, Antonio ; Venanzoni, Giuseppe

Author_Institution

TNO, Defence Security & Safety, The Hague, Netherlands

fYear

2012

fDate

26-30 March 2012

Firstpage

1

Lastpage

5

Abstract

In this work we describe an effective strategy for the avoidance of common-mode resonances excited in a printed array of loaded dipoles with inherent filtering properties (filtenna). Previous works demonstrated that, for E-plane scanning, such resonances occur due to the unbalanced excitation of the dipoles. The present approach is based on the use of an X-band hybrid-ring connected to the filtenna structure. A design with operational bandwidth spanning from 8.5 to 10.5 GHz is presented and validated with simulations.

Keywords

antenna phased arrays; microreactors; microstrip antennas; E-plane scanning; X-band hybrid-ring; bandwidth 8.5 GHz to 10.5 GHz; common-mode rejection; common-mode resonances; connected dipoles; filtenna structure; inherent filtering properties; loaded dipoles; phased-array filtenna; printed array; Arrays; Bandwidth; Dipole antennas; Impedance; Junctions; Microstrip; Slotline;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6206739

Filename

6206739