A Dual-Band Ultra-Wideband Conformal Antenna for WCE

被引：0
|
作者：
Ran, Maohai [1 ]
Ye, Ming [2 ]
Yin, Bo [2 ]
机构：
[1] Chongqing Electric Power College, Chongqing,400053, China
[2] School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing,400065, China
来源：
Progress In Electromagnetics Research M | 2022年 / 111卷
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摘要：
—In this paper, a dual-band ultra-wideband conformal antenna for Wireless Capsule Endoscopy is proposed. The antenna uses polyimide as a substrate of side wall to achieve conformality, leaving space for other components of the Wireless Capsule Endoscopy. The feeding network of the conformal antenna utilizes the circuit characteristics of Complementary Split-Ring Resonator to achieve dual-band operation at 1.4 GHz and 4.0 GHz. Based on the principle of wideband characteristics of spiral antennas, the conformal antenna radiation structure is improved. A short-pin is loaded at an appropriate position to improve the impedance matching of the antenna and achieve ultra-wideband without changing the resonant points of the antenna. The operating bandwidth of the antenna can reach 30.3% (1.20 ∼ 1.63 GHz) and 53.3% (3.33 ∼ 5.75 GHz), respectively. In addition, the antenna is placed in different simulation models to verify the stability of its operation. Minced pork is used to verify effectiveness of the conformal antenna. The measured results show that the proposed antenna is suitable for capsule endoscopy. © 2022, Electromagnetics Academy. All rights reserved.
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页码：89 / 101
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