Design of UWB Monopole Antenna with 5.5/7.5 GHz Enhanced and Controllable Dual Band Rejection Characteristics

2020 IEEE 1st International Conference for Convergence in Engineering (ICCE) Pub Date : 2020-09-05 DOI:10.1109/ICCE50343.2020.9290693

R. Sanyal, S. Coomar, D. Chanda (Sarkar), Partha Sarathi Bera, Partha Pratim Sarkar

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引用次数: 3

Abstract

This paper presents a printed ultra-wideband (UWB) monopole antenna with enhanced dual-band notch characteristics at 5.5 GHz and 7.5 GHz. As the proposed antenna comprises a quasi-elliptical patch and staircase ground plane with rectangular bevel slots, it is capable of producing much wider impedance bandwidth (2.9 -16 GHz, VSWR ≤ 2). To obtain enhanced rejection at 5.5 GHz, two different λ/2 filters are incorporated. These filters include C shaped slot at the patch and symmetrical pair of Rectangular single complementary split ring resonator (RSCSRR) to the ground plane. Strong rejection at 7.5 GHz has been achieved by employing another combination of λ/2 filters consisting of U shaped slot on the feed line and modified C shaped defective ground structure (DGS). By proper adjustment of the gap between the RSCSRR pair and separation of modified C shaped DGS from the lower periphery of the ground plane, the Quality factor of the notched bands can be easily controlled.

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5.5/7.5 GHz增强可控双带抑制特性超宽带单极天线设计

本文提出了一种在5.5 GHz和7.5 GHz具有增强双频陷波特性的印刷超宽带(UWB)单极天线。由于所提出的天线包括一个准椭圆贴片和带矩形斜槽的阶梯接地面，因此它能够产生更宽的阻抗带宽(2.9 -16 GHz, VSWR≤2)。为了获得5.5 GHz的增强抑制，采用了两个不同的λ/2滤波器。这些滤波器包括贴片处的C形槽和对称对矩形单互补分裂环谐振器(RSCSRR)到地平面。采用另一种由馈线上U形槽和改进的C形缺陷接地结构(DGS)组成的λ/2滤波器组合实现了7.5 GHz的强抑制。通过适当调整RSCSRR对之间的间隙和修饰C形DGS与地平面下边缘的分离，可以很容易地控制缺口带的质量因子。

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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2020 IEEE 1st International Conference for Convergence in Engineering (ICCE)

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