Analysis and Design of Full‐Band Reflectionless Printed Log‐Periodic Dipole Antenna With Dual Absorptive Notched Bands
ABSTRACT In this letter, the analysis and design of a full‐band reflectionless printed log‐periodic dipole antenna (PLPDA) with dual absorptive notched bands is proposed. Resistive loading units (RLUs) are applied to the PLPDA, thereby achieving flexible notched bands through energy absorption rather than reflection. Resistors are loaded at the end of the feeding line to absorb nonradiated low frequency components, achieving full‐band reflectionless characteristic. The reflection coefficient is maintained below −10 dB from DC to 12 GHz, while the realized gain exhibits over 15 dB suppression at 2.45 and 5.8 GHz. Therefore, the proposed antenna is suitable for ultra‐wideband (UWB) systems requiring suppression of low frequency and targeted band interference.
Authors
- Z M Zhang
- Hongtai Chen (ORCID: https://orcid.org/0000-0002-5035-9236)
- Jinlun Li (ORCID: https://orcid.org/0000-0002-6951-9199)
- Qipeng Wang (ORCID: https://orcid.org/0009-0007-6903-2472)
- Peng Liu
- Xiaoxing Yin (ORCID: https://orcid.org/0000-0002-7004-9761)
- Zihao Yang (ORCID: https://orcid.org/0009-0001-9651-2515)
- Zhixia Xu (ORCID: https://orcid.org/0000-0002-9833-0993)
- Shunli Li (ORCID: https://orcid.org/0000-0001-9668-1784)
Institutions
- Xi'an Aeronautical University (CN)
- Southeast University (CN)
Publication Details
- Journal
- Microwave and Optical Technology Letters
- Published
- 2026-05-31
- DOI
- https://doi.org/10.1002/mop.70673
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00