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This paper presents a new microstrip open loop resonator bandpass filter (BPF) for wireless local area networks (WLAN) with wide stopband response. The proposed BPF is composed of a pair of half-wavelength open loop resonators and two additional resonators operating at the center frequency of 2.44 GHz. Two novel resonators consisted of asymmetrical spurlines and quarter-wavelength open-circuited stubs...
A novel wide stopband coplanar waveguide (CPW) low pass filter (LPF) using quarter wavelength stepped impedance resonators (SIR) is presented. The bandstop characteristics of the quarter wavelength short circuited stubs SIR are demonstrated. By cascading three tapered quarter wavelength short circuited stubs SIR and a CPW spurline resonator, the fabricated low pass filter has sharp rejection with...
In this paper, a novel compact planar three-way dual-band power divider using defected ground structure (DGS) is proposed. Based on this method, the power divider is reduced half of its original size. And it achieves a good performance. To verify the validity, a 915/2400 MHz power divider is fabricated, which could be applied in radio frequency identification (RFID) system. The experimental results...
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