A Novel Compact Triple Bandpass Filter using Microstrip Resonator

Abstract

In this paper, a compact triple-narrowband bandpass filter is designed and proposed using microstrip resonators . The proposed triple-band BPF consists of two half-wave resonators in combination with a simple anti-parallel coupled lines which realizes a triple-band BPF with a size reduction about 42% in comparison with the conventional one. Additionally, transmission zeroes of the proposed structure guarantee the sharpness the skirts of scattering parameters of triple-band BPF. The frequency response of the filter is simulated using an EM simulation tool.

Design of Compact Multiband Microstrip BPF Based on Fractal Open-Ring Configuration

“…In the last century, different development scenarios in communication technologies have been taken place rapidly. However, keeping up the urgent design requirements for multi-applications devices are still not satisfied yet; therefore, several research societies started to concentrate their work in the field of designing multi-band pass filters, multi band stop filters and multi band antennas [1][2][3][4][5][6][7][8][9]. For example in [1][2][3], different stepped impedance resonators were used to design triple band pass filters at various frequency bands.…”

“…For example in [1][2][3], different stepped impedance resonators were used to design triple band pass filters at various frequency bands. Another triple band pass filter was developed by structuring half wave lines coupled in anti-parallel directions [4]. In [5], a fractal geometry was applied to overcome the traditional challenges including enhancing the bandwidth and size reduction [5].…”