Title :
Metamaterial-based wideband shorting-wall loaded mushroom array antenna
Author :
Wei Liu ; Xianming Qing ; Zhi Ning Chen
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
A shorting-wall loaded metamaterial mushroom array antenna is proposed for bandwidth enhancement and compact design. Owing to the shorting-wall loading, the lower frequency region of the right-handed branch of the composite right/left-handed (CRLH) mushroom structure is exploited. The operating modes of the antenna are investigated. The antenna prototype at 5-GHz band exhibits 26% impedance bandwidth (|S11|<;-10 dB) with a compact size of 0.65λ0 × 0.61λ0 × 0.06λ0 (λ0 is the center operating wavelength in free space).
Keywords :
dielectric-loaded antennas; metamaterial antennas; microstrip antenna arrays; microwave antenna arrays; bandwidth enhancement; compact antenna; composite right-handed/left-handed mushroom structure; frequency 5 GHz; metamaterial based wideband shorting wall loaded array antenna; mushroom array antenna; shorting wall loading; Antenna arrays; Antenna measurements; Arrays; Bandwidth; Broadband antennas; Loaded antennas; CRLH mushroom; Wideband antenna; compact antenna; low profile; metamaterial antenna; metamaterials; shorted boundary;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
