Low-profile mounting-tolerant folded-out annular slot antenna for VHF applications

Author

Clavijo, S.A. ; Diaz, R.E. ; Caswell, Eric

Author_Institution

Arizona State Univ., Tempe

fYear

2007

fDate

9-15 June 2007

Firstpage

13

Lastpage

16

Abstract

The goal of this investigation is to obtain mount-independent low profile, tunable antenna operation over VHF and UHF with an omni-directional azimuth radiation pattern for both line-of-sight (LoS) and SATCOM functions thus replacing multiple antennas (including an 8 foot long whip) on current Marine Corps vehicles. The baseline form-factor was an annular slot antenna (ASA) 24" times24" times2.5" with the UHF antenna integrated into the center disk of the ASA. The VHF antenna was to be tunable across two bands of operation, 30 - 88 MHz and 136 - 174 MHz. Thus, at the low end of the band the antenna is extremely small electrically: lambda/14 in diameter and lambda/143 in depth.

Keywords

UHF antennas; VHF antennas; antenna radiation patterns; loop antennas; satellite communication; slot antennas; Marine Corps vehicles; SATCOM; UHF antenna; VHF antenna; folded-out annular slot antenna; frequency 136 MHz to 174 MHz; frequency 30 MHz to 88 MHz; line-of-sight communication; low-profile mounting-tolerant slot antenna; omni-directional azimuth radiation pattern; tunable antenna operation; Apertures; Circuit simulation; Coaxial components; Electric resistance; Impedance; Inductors; Magnetic materials; Metamaterials; Slot antennas; UHF antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-0877-1

Electronic_ISBN

978-1-4244-0878-8

Type

conf

DOI

10.1109/APS.2007.4395418

Filename

4395418