Compact TSA with Anti-Spiral Shape and Lumped Resistors for UWB Applications

Xue-Ping Li; Gang Xu; Chang-Jiao Duan; Ming-Rong Ma; Shui-E Shi; Wei Li

doi:10.3390/mi12091029

Micromachines (Aug 2021)

Compact TSA with Anti-Spiral Shape and Lumped Resistors for UWB Applications

Xue-Ping Li,
Gang Xu,
Chang-Jiao Duan,
Ming-Rong Ma,
Shui-E Shi,
Wei Li

Affiliations

Xue-Ping Li: College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China
Gang Xu: College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China
Chang-Jiao Duan: College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China
Ming-Rong Ma: College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China
Shui-E Shi: College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China
Wei Li: College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453600, China

DOI: https://doi.org/10.3390/mi12091029
Journal volume & issue: Vol. 12, no. 9
p. 1029

Abstract

Read online

A novel compact tapered-slot-fed antenna (TSA) with anti-spiral shape and lumped resistors is presented for ultra-wideband (UWB) applications. Unique coplanar waveguide (CPW) to coplanar strip (CPS) feeding structure and exponential slot are designed to ensure the continuous current propagation and good impedance matching. With a pair of anti-spiral-shaped structure loadings at the end of the antenna, the radiation performance in lower operating band can be enhanced obviously. The typical resistor loading technique is applied to improve the time domain characteristics and expand the bandwidth. The fabricated prototype of this proposed antenna with a size of 53 × 63.5 mm2 was measured to confirm simulated results. The proposed antenna has S11 less than −10 dB in the range of 1.2–9.8 GHz, and the group delay result is only 0.4 ns. These findings indicate the proposed antenna can be taken as a promising candidate in UWB communication field.

Published in Micromachines

ISSN: 2072-666X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mechanical engineering and machinery
Website: https://www.mdpi.com/journal/micromachines

About the journal

Abstract

Keywords