A 10.5–14.5 GHz wide-scanning connected array of dipoles with common-mode rejection loops to ensure polarization purity

Author

Cavallo, Daniele ; Neto, Andrea ; Gerini, Giampiero

Author_Institution

TNO Defense, Security & Safety, The Hague, Netherlands

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

Due to electrical connection between the array elements, standard baluns typically used in arrays of resonant dipoles are not effective for connected arrays. Therefore, a novel Printed Circuit Board (PCB) solution to avoid common-mode resonances, without resorting to active components or MMIC technology, is proposed in this paper. It consists in a loop-shaped component that rejects the common mode, allowing the design of connected arrays with X-pol levels lower than -15 dBs over a relative bandwidth that exceeds 30%. Simulated results obtained via Ansoft HFSS are presented for validation.

Keywords

MMIC; dipole antenna arrays; electromagnetic wave polarisation; microwave antenna arrays; printed circuits; Ansoft HFSS; MMIC technology; PCB; X-pol levels; common-mode rejection loops; frequency 10.5 GHz to 14.5 GHz; loop-shaped component; polarization purity; printed circuit board; resonant dipole antenna array; wide-scanning connected dipole antenna array; Arrays; Bandwidth; Broadband antennas; Dipole antennas; Feeds; Inductance; Magnetic fields;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561246

Filename

5561246