Title :
Active microstrip log periodic antenna
Author :
Rahim, M.K.A. ; Gardner, P.
Author_Institution :
Wireless Commun. Centre, Univ. Teknologi Malaysia, Skudai, Malaysia
Abstract :
This paper describes two different configurations of integration active devices into a log periodic antenna (LPA). The first configuration involves the integration of a single amplifier at the input feed line of a five element log periodic antenna (LPA). The second configuration involves the integration of an amplifier in the middle of the five elements LPA. Integrating an amplifier in front of an array introduces signal gain without reducing bandwidth. Integrating an amplifier in the middle of the feed line appears to offer some potential increase in the bandwidth and introduces additional gain for the array, but it also introduces a negative gain slope vs. frequency.
Keywords :
active antenna arrays; antenna feeds; log periodic antennas; microstrip antenna arrays; microwave amplifiers; LPA active device integration; active microstrip antenna; array gain; bandwidth increase; input feed line amplifier; multiple element log periodic antenna; Bandwidth; Costs; Feeds; Frequency; Log periodic antennas; MMICs; Microstrip antennas; Microwave integrated circuits; Patch antennas; Receiving antennas;
Conference_Titel :
RF and Microwave Conference, 2004. RFM 2004. Proceedings
Print_ISBN :
0-7803-8671-X
DOI :
10.1109/RFM.2004.1411095