Title :
A novel element and feed configuration for a dipole very closely spaced to a PEC ground plane
Author_Institution :
SNHA, Air Force Res. Lab., Hanscom AFB, MA, USA
Abstract :
A novel element and feed design are presented that allow a dipole to exhibit high radiation efficiency and gain when it is very closely spaced (< 0.05λ) to a PEC ground plane. The dipole element configuration has impedance matching and a balanced feed built within the antenna structure so that external matching and balun are not required. It is shown that high Q and correspondingly narrow bandwidth are the fundamental performance limitations when a dipole is very closely spaced to a PEC ground.
Keywords :
Q-factor; antenna feeds; dipole antennas; electric impedance; impedance matching; PEC ground plane; antenna feed; antenna gain; balanced feed; balun; dipole antenna element; dipole impedance; impedance matching; radiation efficiency; Antenna feeds; Bandwidth; Conductors; Dipole antennas; Impedance matching; National electric code; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331986
