Compact Reflectionless Antenna with a Wide Absorption Band

Wei Hao Chen; Cheng Jin; Zhongxiang Shen

doi:10.1109/AP-S/USNC-URSI60190.2026.11675408

Compact Reflectionless Antenna with a Wide Absorption Band

Wei Hao Chen
, Cheng Jin
, Zhongxiang Shen

School of Cyberspace Science and Technology

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A reflectionless antenna with compact size and wideband absorption is proposed. A reflectionless slot antenna consists of a frame ground, a microstrip feed line, a bandstop filter, and a resistor. The bandstop filter is composed of a capacitor and an inductor, placed at the end of the microstrip feed line with a resistor. The in-band input energy is radiated by the antenna, while the out-of-band energy is dissipated through the resistor via the bandstop filter, resulting in a wideband reflectionless characteristic. The fabricated reflectionless slot antenna exhibits wide reflectionless bands ranging from DC to 9.72 GHz. Within the operating band, the bandstop filter with a resistor has almost no effect on the gain of the slot antenna. The wideband reflectionless characteristics and compact dimensions make the antenna potentially useful for mobile communications.

Original language	English
Title of host publication	2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2252-2255
Number of pages	4
ISBN (Electronic)	9798331584122
DOIs	https://doi.org/10.1109/AP-S/USNC-URSI60190.2026.11675408
Publication status	Published - 2026
Event	2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Detroit, United States Duration: 12 Jul 2026 → 17 Jul 2026

Publication series

Name	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)	1522-3965
ISSN (Electronic)	1947-1491

Conference

Conference	2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026
Country/Territory	United States
City	Detroit
Period	12/07/26 → 17/07/26

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10.1109/AP-S/USNC-URSI60190.2026.11675408

Cite this

Chen, W. H., Jin, C., & Shen, Z. (2026). Compact Reflectionless Antenna with a Wide Absorption Band. In 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings (pp. 2252-2255). (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/AP-S/USNC-URSI60190.2026.11675408

Chen, Wei Hao ; Jin, Cheng ; Shen, Zhongxiang. / Compact Reflectionless Antenna with a Wide Absorption Band. 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2026. pp. 2252-2255 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

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title = "Compact Reflectionless Antenna with a Wide Absorption Band",

abstract = "A reflectionless antenna with compact size and wideband absorption is proposed. A reflectionless slot antenna consists of a frame ground, a microstrip feed line, a bandstop filter, and a resistor. The bandstop filter is composed of a capacitor and an inductor, placed at the end of the microstrip feed line with a resistor. The in-band input energy is radiated by the antenna, while the out-of-band energy is dissipated through the resistor via the bandstop filter, resulting in a wideband reflectionless characteristic. The fabricated reflectionless slot antenna exhibits wide reflectionless bands ranging from DC to 9.72 GHz. Within the operating band, the bandstop filter with a resistor has almost no effect on the gain of the slot antenna. The wideband reflectionless characteristics and compact dimensions make the antenna potentially useful for mobile communications.",

author = "Chen, \{Wei Hao\} and Cheng Jin and Zhongxiang Shen",

note = "Publisher Copyright: {\textcopyright} 2026 IEEE.; 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 ; Conference date: 12-07-2026 Through 17-07-2026",

year = "2026",

doi = "10.1109/AP-S/USNC-URSI60190.2026.11675408",

language = "English",

series = "IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Chen, WH, Jin, C & Shen, Z 2026, Compact Reflectionless Antenna with a Wide Absorption Band. in 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings. IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), Institute of Electrical and Electronics Engineers Inc., pp. 2252-2255, 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026, Detroit, United States, 12/07/26. https://doi.org/10.1109/AP-S/USNC-URSI60190.2026.11675408

Compact Reflectionless Antenna with a Wide Absorption Band. / Chen, Wei Hao; Jin, Cheng; Shen, Zhongxiang.
2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2026. p. 2252-2255 (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Compact Reflectionless Antenna with a Wide Absorption Band

AU - Chen, Wei Hao

AU - Jin, Cheng

AU - Shen, Zhongxiang

PY - 2026

Y1 - 2026

N2 - A reflectionless antenna with compact size and wideband absorption is proposed. A reflectionless slot antenna consists of a frame ground, a microstrip feed line, a bandstop filter, and a resistor. The bandstop filter is composed of a capacitor and an inductor, placed at the end of the microstrip feed line with a resistor. The in-band input energy is radiated by the antenna, while the out-of-band energy is dissipated through the resistor via the bandstop filter, resulting in a wideband reflectionless characteristic. The fabricated reflectionless slot antenna exhibits wide reflectionless bands ranging from DC to 9.72 GHz. Within the operating band, the bandstop filter with a resistor has almost no effect on the gain of the slot antenna. The wideband reflectionless characteristics and compact dimensions make the antenna potentially useful for mobile communications.

AB - A reflectionless antenna with compact size and wideband absorption is proposed. A reflectionless slot antenna consists of a frame ground, a microstrip feed line, a bandstop filter, and a resistor. The bandstop filter is composed of a capacitor and an inductor, placed at the end of the microstrip feed line with a resistor. The in-band input energy is radiated by the antenna, while the out-of-band energy is dissipated through the resistor via the bandstop filter, resulting in a wideband reflectionless characteristic. The fabricated reflectionless slot antenna exhibits wide reflectionless bands ranging from DC to 9.72 GHz. Within the operating band, the bandstop filter with a resistor has almost no effect on the gain of the slot antenna. The wideband reflectionless characteristics and compact dimensions make the antenna potentially useful for mobile communications.

UR - https://www.scopus.com/pages/publications/105051032454

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DO - 10.1109/AP-S/USNC-URSI60190.2026.11675408

M3 - Conference contribution

AN - SCOPUS:105051032454

T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)

SP - 2252

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BT - 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026

Y2 - 12 July 2026 through 17 July 2026

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Chen WH, Jin C, Shen Z. Compact Reflectionless Antenna with a Wide Absorption Band. In 2026 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/USNC-URSI 2026 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2026. p. 2252-2255. (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)). doi: 10.1109/AP-S/USNC-URSI60190.2026.11675408

Compact Reflectionless Antenna with a Wide Absorption Band

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