Title :
High-gain low-sidelobe double-vee dipoles
Author :
Patwari, Neal ; Safaai-Jazi, Ahmad
Author_Institution :
Motorola Labs., Plantation, FL, USA
fDate :
2/1/2000 12:00:00 AM
Abstract :
This paper introduces a novel variation of the vee dipole antenna consisting of two coplanar vee dipoles with a common feed point. It is referred to as a double-vee dipole. Radiation characteristics of the double-vee dipole antenna are investigated numerically and experimentally. It is shown that the double-vee dipole can provide significantly higher directivity and lower sidelobes and back radiation than the conventional vee dipole. With increasing arm length, the directivity of the double-vee dipole exhibits a series of local maxima. Measured and predicted radiation patterns for a fabricated double-vee dipole are presented and shown to be in good agreement
Keywords :
UHF antennas; VHF antennas; antenna radiation patterns; dipole antenna arrays; directive antennas; 150 to 450 MHz; arm length; back radiation; common feed; coplanar vee dipoles; directivity; high-gain low-sidelobe double-vee dipoles; radiation characteristics; radiation patterns; sidelobes; Antenna feeds; Antenna measurements; Antenna radiation patterns; Antennas and propagation; Dielectrics; Dipole antennas; Directive antennas; Electromagnetic scattering; Finite element methods; Geometry;
Journal_Title :
Antennas and Propagation, IEEE Transactions on