[moved] Multiband Inverted-F Antenna W/ Independent Bands for Small & Slim Cellular
时间：04-04
整理：3721RD
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I am implementing PIFA for Small and slim mobiles.
My radiator has a dimension of 25*26.5*3.57 mm and I am using three center frequencies from wireless band which are 2.09,3.74 and 5 GHz.
I am not getting good matching for first two frequencies i.e almost 4 dB which is worst.
but good matching for 5 GHz i.e -30 dB
My question is that I want minimum reflection coefficient for first two frequencies round about -14 dB so that I can find my bandwidth at -6 dB at least.
Which things should I play ?
Please reply
My radiator has a dimension of 25*26.5*3.57 mm and I am using three center frequencies from wireless band which are 2.09,3.74 and 5 GHz.
I am not getting good matching for first two frequencies i.e almost 4 dB which is worst.
but good matching for 5 GHz i.e -30 dB
My question is that I want minimum reflection coefficient for first two frequencies round about -14 dB so that I can find my bandwidth at -6 dB at least.
Which things should I play ?
Please reply
By changing the W you will get response at desired frequency. Return loss about -30dB is possible by tuning the antenna. Find out the optimum FEED position along the Length.
Best wishes