Characteristics of a 2�2 triangular microstrip subarray

Hsieh, Gui‐Bin

doi:10.1002/(sici)1098-2760(19981020)19:3<221::aid-mop14>3.0.co;2-4

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2012

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“…The rapid growth of wireless communications requires improved performances for antennas to meet the demand of serving more users with more functionalities [1]- [3]. More frequency bands, such as LTE 2300/2500 MHz, have been allocated to provide higher data rate services to a large number of mobile users.…”

Section: Introductionmentioning

confidence: 99%

Broadband High-Gain Microstrip Array Antennas for WiMAX Base Station

Chen

Sim

et al. 2012

IEEE Trans. Antennas Propagat.

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Two novel array antennas (3 2 and 3 3) with broadband and high gain characteristics are proposed for the application of WiMAX base station. To maintain the same electric current intensity with identical phase for each array element, an asymmetrical feed-network which composed of microstrip T-junctions with 2:1 power ratio, quarter-wavelength impedance transformers, and 180 phase shifters are devised, which in turn exhibits a desirable gain of more than 17 dBi at boreside direction for the proposed array antennas. Furthermore, by embedding a U-slot into all array elements, enhanced operating bandwidth measured along 14-dB return loss can be achieved, so that the WiMAX band operating between 3.3 and 3.8 GHz can be covered.

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Section: Introductionmentioning

confidence: 99%