Title :
A practical approach to wideband antenna array characterization
Author :
London, S. ; Leonov, V. ; Koert, P. ; Susman, L.
Author_Institution :
Adv. Power Technol. Inc., Washington, DC, USA
Abstract :
A high power HF phased antenna array capable of very wideband frequency and scan coverage is being constructed as part of the High Frequency Active Auroral Research Program (HAARP), in Galkona, AK. This paper presents measurement and analytic array characterization approach for the purpose of antenna evaluation and antenna matching unit (AMU) design. It is based on the use of scattering parameters measurement of the array and has resulted in a 30% improvement in the low frequency range of the HAARP system. The effectiveness of the design is further evaluated by calculating the average efficiency of the array system, which is within 1.5 dB of its theoretical maximum
Keywords :
HF antennas; S-parameters; antenna phased arrays; antenna testing; dipole antenna arrays; impedance matching; Galkona; HAARP; High Frequency Active Auroral Research Program; antenna evaluation; antenna matching unit; array characterization; average efficiency; cross dipole elements; high power HF phased antenna array; low frequency range; scattering parameters measurement; wideband antenna array; wideband scan coverage; Antenna arrays; Antenna measurements; Broadband antennas; Dipole antennas; Feeds; Frequency; Phased arrays; Resonance; Transmission line matrix methods; Transmission line measurements;
Conference_Titel :
Radio and Wireless Conference, 1998. RAWCON 98. 1998 IEEE
Conference_Location :
Colorado Springs, CO
Print_ISBN :
0-7803-4988-1
DOI :
10.1109/RAWCON.1998.709148
