A Wideband Monoconical Antenna for Airborne Applications With a Null-Filled Radiation Pattern

• Autor: Kim, Wonkyo ; Shin, Geonyeong ; Lee, Kyung-Won ; Mun, Byeonggwi ; Yoon, Ick-Jae
• Assuntos: Aircraft ; Antenna measurements ; Antenna radiation patterns ; Antennas ; Broadband ; Broadband antennas ; Current distribution ; Dipole antennas ; Electric fields ; Figure of merit ; Impedance ; Impedance matching ; Monoconical antennas ; null-filled radiation pattern ; Radiation ; Radiators ; rotational current distribution ; Slot antennas ; wideband antennas
• É parte de: IEEE antennas and wireless propagation letters, 2022-06, Vol.21 (6), p.1158-1162
• Descrição: A wideband monoconical antenna with a null-filled radiation pattern for airborne applications is presented. A rotating current distribution, which radiates an electric field at the null point ( θ = φ = 0°) of an omnidirectional radiation pattern of a conventional monoconical antenna, is formed using the proposed slotted structure in a monoconical radiator. In the proposed design, the null point is effectively filled over the 1:12 impedance-matched frequencies, while the size of the reference monoconical antenna is maintained. A figure of merit composed of the electric field intensity in the main radiation area (0° ≤ θ ≤ 45° and 0° ≤ φ ≤ 360°) and the profile of the antenna shows that the proposed antenna performs better than a conventional monoconical antenna or a fan-dipole antenna used in airborne applications. The impedance and radiation performances of the proposed antenna are verified experimentally from a 5.85:1 scaled built prototype.
  
• Editor: New York: IEEE
  
• Idioma: Inglês