Analysis of a Low-Profile Penta band BPF Using Ring Resonator For Muiltiband Applications

Abstract

In order to improve the return loss, transmission coefficient and group latency, a flexible penta-band BPF was designed using a ring resonator and a crossshaped resonator. This type of circular ring resonator is applicable to multiple wireless communication applications. An-soft HFSS v13 was used to design and simulate a penta band BPF using this circular ring resonator. The simulated results of the designed filter indicate that the penta band BPF resonates at 1.7 GHz, 3.5 GHz, 5.4 GHz, 7.1 GHz and 9 GHz with a fractional bandwidth of 5.8%, 4.5%, 3.7%, 2.7 % and 2.22%, respectively, and a transmission coefficient of 0.3 dB at all resonating frequencies with a return loss of -37.7 dB, -42.5 dB, -18.9 dB, -30.43 dB and -13.3 dB respectively.

Specification

Description:The enhanced combined bandpass with stepped impedance with an array of SIRs is designed and explained by the filter, which has a transmission coefficient of about 2.681 dB, a reflection coefficient of approximately 18.2 dB, a centre frequency of 1.45 GHz, and 11.41% of fractional bandwidth (Δf). One advantage of the design is that it has few via-hole grounds and no lumped elements. Fifth Generation (5G) mobile communication is gaining popularity as a result of the increasing need for fast data rates. Technologies for mobile communications have advanced quickly in recent years. The 5G mobile network, which follows the other generations, is the next wireless industry standard. Covering a broad spectrum of radio bands, which have frequencies between 400 MHz and 90 GHz, is the aim of 5G's adaptable utilisation. Because of this broad spectrum, 5G applications may just need the required channel bandwidth and not the whole sub-6 GHz bandwidth. , Claims:1) A flexible penta band microstrip circular ring resonator BPF was designed using a cross-shaped resonator and full copper layer has been used as the ground plane.
2) This filter is suitable for various wireless communication applications
including satellite communication applications because it resonates at five resonant frequencies and those are 1.7 GHz, 3.5 GHz, 5.4 GHz, 7.1 GHz and 9 GHz.
3) Its transmission coefficient is 0.3 dB at all resonating frequencies, and its return loss is 37.7 dB, -42.5 dB, -18.9 dB, -30.43 dB and -13.3 dB with fractional bandwidths of 5.8%, 4.5%, 3.7%, 2.7 % and 2.22% respectively.
4) This filter can be used for various wireless communication applications because it is very small in size and offers more resonant frequency bands.

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