Title :
Low-Profile Conformal Circular Beam-Steering Array with Ultra-Broad Instantaneous Bandwidth
Author :
Wang, Johnson J H ; Triplett, David J.
Author_Institution :
Wang Electro-Opto Corp., Marietta
Abstract :
This paper reports continued development of an ultra-broadband smart beam-steering circular array antenna with parasitically excited surface waveguides for low cost. The array has a low profile and is conformable to platforms, with a directivity of 5 to 10 dBi. Its steered beam and null cover full 360deg azimuth angles. Significant progress has been made in expanding the array´s instantaneous bandwidth from 20-250 MHz to about 1000 MHz, which is an octaval bandwidth of 2:1 over the operating range of 1-2 GHz.
Keywords :
UHF antennas; adaptive antenna arrays; beam steering; circular waveguides; conformal antennas; ultra wideband antennas; bandwidth 20 MHz to 1000 MHz; conformal antenna; frequency 1 GHz to 2 GHz; parasitically excited surface waveguide; ultra-broadband smart beam-steering circular array antenna; Antenna arrays; Antenna measurements; Azimuth; Bandwidth; Circuit testing; Frequency; Log periodic antennas; Surface waves; Switching circuits; Wireless LAN;
Conference_Titel :
Electromagnetics in Advanced Applications, 2007. ICEAA 2007. International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-0767-5
Electronic_ISBN :
978-1-4244-0767-5
DOI :
10.1109/ICEAA.2007.4387407
