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A design of a CDMA 450 cellular base station antenna with a polarization diversity feature is presented in this paper. The antenna structure consists of an array of dual-polarized λ/4 FR4 dipole antenna combined with a reflector to provide a high gain of 15 dB. This antenna has VSWR ≤ 1.5 and a directional radiation pattern characteristic with a specified beamwidth. The proposed...
This paper discussed the simulation and analysis for developing array antenna operating from 450 MHz to 470 MHz using bended dipole antenna developed in Telekom Research & Development, Cyberjaya. The simulation design includes power divider design determination of cable's length and the effect of tapering amplitude of the array antenna to the overall radiation pattern. At the end, results...
This analysis has demonstrated a successful analysis and optimization techniques to improve the typically narrowband monopole disc antenna. The shorting post technique has succeeded to increase the bandwidth of the monopole disc antenna and the omni-directional radiation pattern is consistent throughout the frequency of interest. This can be concluded that this monopole disc antenna managed to perform...
The analysis and the optimization technique of a multi-band operating system monopole disc antenna for the cellular application is presented. The operating frequency of the multi-band monopole disc antenna includes the GSM 900, GSM 1800 and 3G band. The antenna structure consists of a monopole cylinder with a circular disc to provide a broadband characteristic. The antenna is required to have omni-directional...
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