Uniplanar Conformal Center-Split M-Unit Cell Based SSPP Broadband Bandpass Filter for B5G Radio Stripe Networks

0 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE microwave and wireless technology letters Pub Date : 2025-02-14 DOI:10.1109/LMWT.2025.3539017

Bhushan Ballav Pathak;Ramanand Sagar Sangam;Rakhesh Singh Kshetrimayum;Jiasheng Hong;Matthew A. Morgan

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Abstract

In this letter, a single-layer flexible broadband bandpass filter using spoof surface plasmon polariton (SSPP) is presented. The filter consists of center-split M-shaped unit cells arranged on either side of the central metal CPW line. In the proposed design, interdigital structures are placed in the arms of the unit cell to control the lower cutoff frequency, whereas the SSPP structures of unit cells can adjust the higher cutoff frequency. The filter has a height of

$0.002\lambda _{g}$

and a volume of

$0.0052\lambda _{g}^{3}$

, where

$\lambda _{g}$

represents the guided wavelength at the operating bandwidth’s central frequency. The measured passband has a relative bandwidth of 59% with an insertion loss (IL) of 1.2 dB. The characteristics of the presented filter, such as low volume, flexibility, ultrathin profile, and wide bandwidth, make it an excellent contender for applications in beyond fifth-generation (5G) radio stripe networks (RSNs).

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B5G无线条纹网络中基于单平面共形中心分裂m单元的SSPP宽带带通滤波器

本文提出了一种利用欺骗表面等离子激元（SSPP）的单层柔性宽带带通滤波器。该滤波器由布置在中央金属CPW线两侧的中心分裂m形单元格组成。在所提出的设计中，在单元格的臂部放置数字间结构来控制较低的截止频率，而单元格的SSPP结构可以调节较高的截止频率。滤波器的高度为$0.002\lambda _{g}$，体积为$0.0052\lambda _{g}^{3}$，其中$\lambda _{g}$表示工作带宽中心频率处的引导波长。所测通带的相对带宽为59%，插入损耗（IL）为1.2 dB。所提出的滤波器的特性，如低体积、灵活性、超薄外形和宽带宽，使其成为第五代（5G）无线条纹网络（rsn）应用的优秀竞争者。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE microwave and wireless technology letters

CiteScore

6.00

自引率

0.00%

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