A Self-Complementary 1.2 to 40 GHz Spiral Antenna with Impedance Matching

Autor:	M. Mazanek, P. Piksa
Jazyk:	angličtina
Rok vydání:	2006
Předmět:	Spiral antenna ultra wide-band UWB circular polarization planar self-complementary structure current distribution transition impedance transformer impedance matching s-parameters renormalizing Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Radioengineering, Vol 15, Iss 3, Pp 15-19 (2006)
Druh dokumentu:	article
ISSN:	1210-2512
Popis:	This paper describes a design of the Self- Complementary Spiral Antenna (SCSA) which consists of a spiral antenna and a wideband impedance transformer. The spiral antenna and the transformer are designed separately due to computing demands. New knowledge about current distribution on the spiral antenna and influence of higher numbers of wavelength in circumference is presented. The novel transition between feeding and radiating antenna structure are optimized in the frequency range 1.2 to 40 GHz. The meaning of the transition in the paper includes the impedance as well as the geometry transforming of the structure. The antenna is suitable for wideband illuminating of a parabolic reflector due to relatively constant phase center and radiation pattern with frequency.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/4f9b14aa7910457199f8464bf04499f7 Zobrazit plný text záznamu View record in DOAJ