A Conformal Conical Archimedean Spiral Antenna for UWB Communications. Issue 2 (1st April 2015)

• Record Type: Journal Article
• Authors: Song, Lizhong; Fang, Qingyuan
• Is Part Of: Chinese journal of electronics. Volume 24:Issue 2(2015)
• Page Start: 402
• Page End: 407
• Publication Date: 2015-04-01
• Subjects: antenna radiation patterns -- conformal antennas -- dielectric devices -- microwave antennas -- spiral antennas -- substrate integrated waveguides -- UHF antennas -- ultra wideband antennas -- ultra wideband communication; wide‐band miniaturized conformal conical Archimedean spiral antenna -- UWB communications -- CCARS antenna -- ultra wideband communications -- vertical space utilizes -- antenna installation space -- planar Archimedean spiral antenna -- antenna miniaturization technique -- flexible dielectric substrate -- PARS antenna -- unidirectional radiation property -- voltage standing wave ratio -- radiation patterns -- beam width -- frequency 1.3 GHz to 9 GHz -- gain 3.4 dB; Electronics -- Periodicals; Electronics -- China -- Periodicals; Electronics; China; Periodicals; 621.38105
• DOI: 10.1049/cje.2015.04.030
• Languages: English
• ISSNs: 1022-4653

Abstract

Abstract : In this paper, a wide‐band miniaturized Conformal conical Archimedean spiral (CCARS) antennais proposed for Ultra wideband (UWB) communications. The CCARS antenna utilizes the vertical space instead of horizontal space significantly saving the antenna installation space. We investigate the transformation from Planar Archimedean spiral (PARS) antenna to the CCARS antenna and the antenna miniaturization technique. Due to the using of flexible dielectric substrate, the PARS antenna can be bent freely, which assures the transformation from the PARS antenna to the CCARS antenna. To realize antenna miniaturization, zigzag shape arms are applied to the PARS antenna. Moreover, the CCARS antenna has good unidirectional radiation property that avoids the using of traditional absorber‐loaded back cavity. The measured results of antenna prototype indicate that the Voltage standing wave ratio (VSWR) is below 2 over the frequency range from 1.3GHz to 9GHz. The antenna gain is higher than 3.4dBi and the Front to back (F/B) ratio is better than 20dB from 2GHz to 7GHz. In addition, good radiation patterns and broad 3dB beam width are also available for the CCARS antenna.