A sharp‐selective micro strip triplexer with hairpin resonators for long‐term evolution (LTE)

다국어 초록 (Multilingual Abstract)

A compact size planar micro strip triplexer for long‐term evolution (LTE) is presented. The triplexer consists of three hairpin band pass filters and a T‐shaped micro strip line. T‐shaped microstrip line has been used as input signal splitting structure and hairpin filters bring sharp selectivity. Input impedance matching of the structure carried out with three metalized vias in the middle of the filters. The central pass band frequencies (0.9, 1.17, and 1.5 GHz) are selected according to LTE frequency bands. The pass band of the filters include 0.88 to 0.91, 1.16 to 1.21, and 1.47 to 1.53 GHz. Isolation among the output channels are better than 40 dB. The measurement results verify the design process satisfactorily. The proposed triplexer can be used in BTS antenna for enabling more than one transmitter on a single antenna.
A compact size planar micro strip triplexer for long‐term evolution (LTE) is presented. The triplexer consists of three hairpin band pass filters and a T‐shaped micro strip line. T‐shaped microstrip line has been used as input signal splitting structure and hairpin filters bring sharp selectivity.