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![Table 2 . Comparison of the presented BPF with published work [24].](publication/329333624/figure/tbl1/AS:698848737505282@1543629931722/Comparison-of-the-presented-BPF-with-published-work-24_Q320.jpg)
In this paper, a new bandpass filter is designed using two open-loop resonators with polygonal forms. The use of polygonal forms leads to compact size and broad bandwidth behavior. The overall filter dimensions are 8×16 mm2, which correspond to 0.4λg × 0.2λg using a substrate with Rogers Ro 3010 with a relative permittivity of 10.2 and a thickness...
Contexts in source publication
Context 1
... proposed filter design In this paper, a new polygon open-loop resonator compact bandpass filter is presented. The resonator element consists of 11 segments of different lengths; these segments do not intersect with each other, as illustrated in Figure 1. The length of some of these segments can be increased without increasing the resonator area, which is an important feature in this design compared with the conventional open loop resonator. ...
Context 2
... 1) where x1, x2, x3, x4, y1, y2, y3, yg1, and yg2 are as labelled in Figure 1. Consequently, the filter size can be expressed in terms of lr and the guided wavelength, λ g as ...
Context 3
... Microwave Studio Suite of Computer Simulation Technology (CST) [23] was used to model and analyse the filter structures depicted in Figures 1 and 2. The CST simulator performs electromagnetic analysis using the finite-difference time-domain (FDTD). ...
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Citations
... Band pass filter (BPF) is an important component in microwave circuits. Recently, there has been a surge of interest in planar BPFs because of their ease of fabrication [11]- [15]. Researchers are now up against a serious difficulty in developing bandpass filters with high matching levels, low insertion losses, small sizes, and ease of manufacture. ...
In this paper, a novel compact band pass filter (BPF) is proposed for global positioning system (GPS) applications. The proposed filter which is based on a microstrip resonator is mounted on a low cost RO4000 substrate with a dielectric constant εr=3.5, a thickness h=1.542 mm, a loss tangent tan (δ)=0.0027. It has a bandwidth from 1.55 GHz to 1.72 GHz. This filter is optimized and validated by using two electromagnetic solvers. The area occupied by this BPF is 33.6×41.24 mm2. The final circuit is a low cost BPF and can be associated with passive and active circuits due to the miniature dimensions.</span
... As shown in Figure 1, Microstrip dualmode resonator has a two-dimensional (2-D) symmetry: The number of resonators required for an n-degree filter is cut in half by using a dual-mode resonator as a double tuned resonant circuit [10][11]. This filter operates as the shunt-resonator with the design is described by the following equations [10][11][12][13][14]: ...
This paper presents a new miniature Microstrip Bandpass Filter optimized and validated for DCS (Digital Cellular System) Band. The proposed filter is based on a Microstrip resonator. Each port has a step impedance feed line that can be used to adapt the filter's input impedance to the characteristic impedance Z0. The suggested filter is installed on a low-cost FR-4 substrate with a dielectric constant of 4.4, a thickness of 1.6 mm, a loss tangent tan (δ) = 0.025, and a metal thickness of t = 0.035 mm. It has a bandwidth of 1.68GHz to 2.05GHz. Two electromagnetic solvers are used to optimize and validate this filter. The whole dimensions of the final circuit are 33.6x40 mm ² .
This filter is suitable for mobile communication .
The filter's reduction in size becomes a significant difficulty because it frequently has a considerable impact on the wireless system's overall dimensions. This chapter's goal is to introduce fresh ideas that have been made to shrink filters that yet perform admirably. Then, a variety of filters that have been created are revealed. Some microstrip filters are miniaturized using coupled lines, quasilumped elements, and stub topology, and other structures are based on resonators. The structures presented are optimized and validated for different frequency bands (GPS, DCS, ISM, mobile phone, WIMAX). The filter is introduced in its overall context. Using ADS, HFSS, and CST-MWS, a full-wave electromagnetic analysis has been successful in assessing the electrical performances of the suggested structures.
