Design of Broadband Compact Canonical Triple-Sleeve Antenna Operating in UHF Band

In this paper, a novel compact broadband antenna at UHF frequencies is presented with canonical shapes. Hemispherical, conical and cylindrical shapes have all been considered for configuration. The designed provides an instantaneous frequency range from 370 to 5,000 MHz omnidirectional characteristics. was simulated in CST Microwave Studio, fabricated evaluated; the results are presented. measurement good agreement. has voltage standing wave ratio (VSWR) ≤ 1.9:1 400–570 MHz, 2,530–3,740 4,180–4,620 MHz; it VSWR 3:1 over operating 370–5,000 measured gain varies -0.6 4.5 dBi band. concept of canonical-shaped elements incorporation triple sleeves resulted reduction length by 62% compared half-wave dipole lowest frequency. can be used trans-receiving applications wireless communication.