Title :
Wideband, electrically-small, planar, coupled subwavelength resonator antenna with an embedded matching network
Author :
Bai, Jian ; Shi, Shouyuan ; Prather, Dennis W. ; Nelson, Robert
Author_Institution :
Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA
Abstract :
Magnetically coupled (even-mode) D-rings are subwavelength resonators that exhibit strong coupling to radiation. As such, they offer the potential to implement an efficient and electrically small antenna (ESA). However, a significant challenge has been to achieve an impedance match to 50Ω while driving the D-rings. In this paper, we present an ESA comprised of D-rings that are driven by an effective inter-digital monopole and an embedded matching network. The implemented ESA has a footprint of 1/10λ×1/14 λ and experimental results reveal a wide operational bandwidth of 1.0GHz-1.75GHz.
Keywords :
broadband antennas; monopole antennas; resonators; ESA; bandwidth 1 GHz to 1.75 GHz; electrically small antenna; embedded matching network; impedance match; inter-digital monopole; magnetically coupled D-rings; subwavelength resonators; wide operational bandwidth; wideband electrically-small planar coupled subwavelength resonator antenna; Couplings; Impedance; Resonant frequency; Substrates; Transmission line measurements; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349421
