Universiti Teknologi Malaysia Institutional Repository

Wideband active integrated log periodic antenna

Rahim, M. K. A. (2004) Wideband active integrated log periodic antenna. In: International Symposium on Antennas and Propagation, 2004, n/a.

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Active integrated antennas receive a great deal of attention because they can reduce the size, weight, cost of the transceiver system and minimizes the connection losses. Due to the mature technology of microwave integrated circuit (MIC) and monolithic microwave integrated circuit (MMIC), the active integrated antenna become an area of growing interest in recent years. Active integrated antennas have many potential application in wireless communications such as low cost and compact transceivers, detectors and sensors. Various antennas have been integrated into active devices that can be classified into oscillator type [1] , amplifier type [2,3]and frequency conversion type[4]. This paper describes four different configurations of integration active devices into log periodic antenna. 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. The third configuration is the five element LPA with individual amplifiers in each element. The last configuration involves the integration of the individual amplifiers and filters with five element LPA in each element. The performance of these configurations have been investigated and compared in terms of bandwidth, gain relative to a passive LPA, cross polar isolation and beamwidth.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:20422
Deposited By: Mrs Liza Porijo
Last Modified:28 Dec 2011 15:54

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