![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A wide-band dual meander-sleeve antenna which is 24% shorter than a straight-wire quarter-wave monopole has been developed. The antenna can be used as a vehicular antenna operating simultaneously in the 824-894 MHz and the 1850-1990 MHz bands of the personal communication services (PCS). The antenna we propose has bandwidths of 38% in the 824-894 MHz band and 14% in the 1850-1990 MHz band within VSWR 2 . The radiation patterns are omnidirectional in both frequency bands. The gain of the antenna is 2.4 dB at 890 MHz with reference to a half-wave dipole. The maximum gain at 1890 MHz is 4.4 dB and the minimum is 2.9 dB with reference to a half-wave dipole. The polarization of the antenna is vertical. The only limitation of this antenna is a slightly lower gain (2.4 dB compared to required 3 dB with reference to a half-wave dipole) in the 824-894 MHz band. Since the antenna operates over a frequency range of 2.6:1 within VSWR 3, it can also be useful for other wide-band applications.