Fundamental challenges for wideband antenna elements in focal-plane arrays

Authors :: Aleksei Dubok
Al-Rawi, A.
Herben, M. H. A. J.
Adrianus Bernardus Smolders
Electromagnetics
Center for Wireless Technology Eindhoven
Source :: Proceedings of the The 9th European Conference on Antennas and Propagation (EuCAP'2015), 12-17 april 2015, Lisbon Portugal, Pure TUe
Publication Year :: 2015
Abstract: This paper discusses the main design challenges of wideband antenna elements which can be used in focal-plane arrays. A novel electrically-small wideband antenna is presented. It is based on a bow-tie antenna. The proposed antenna shows excellent input matching properties over a frequency band of more than one octave and nearly reaches the theoretical Chu-Harrington limit. It is shown that the centre element of a five-element feed array, operating at a centre frequency of 30 GHz, realizes an input matching bandwidth of 24.4 GHz.

Language :: English
Database :: OpenAIRE
Journal :: Proceedings of the The 9th European Conference on Antennas and Propagation (EuCAP'2015), 12-17 april 2015, Lisbon Portugal, Pure TUe
Accession number :: edsair.dedup.wf.001..6b493a5b30abcd4b47343849f12d45ce