earticle

영어

In this paper, we propose the folded PIFA with its made an alteration to a factor of resonance for L-slot PIFA. Proposed antenna maintain diminished size patch and improve each bandwidth of GSM(0.88~0.96 GHz) and WCDMA(1.92~2,17 GHz) for miniaturized repeater. The non-slot step folded PIFA`s structure that design of essence was general L-slot PIFA for dual-band. It has no U-slot, multi band and the another slot. The parameters of proposed antenna were optimized for dual-band and compact size by folded singleness patch. Proposed antenna by using folded singleness patch take satisfaction main point , bandwidth of GSM and W-CDMA, compact patch size(39×21×13 ). The antenna was designed
by FDTD simulation tool and it was made from result of simulation. Measured data shown that the proposed non-slot step
folded PIFA was strong possibility.