Year: 2026
Type: article
Abstract: In this paper, a novel dual-band broadband antenna based on structure reuse is proposed. The proposed antenna integrates a slot antenna with a microstrip antenna to achieve dual-band performance. The slot antenna innovatively serves as both a radiating element and a feeding structure for the microstrip antenna, realizing structure reuse and significantly reducing structural complexity. To enhance the dual-band bandwidth, four symmetrically arranged parasitic strips are introduced, effectively extending the low-frequency bandwidth. Additionally, the high-frequency bandwidth is further improved by the introduction of a U-shaped slot. To analyze its working principle, the characteristics of the current and electric field distributions at each resonant point are given. The measured results indicate that in the low-frequency band, the proposed antenna achieves a relative bandwidth of 22.1% and a peak gain of 6.5 dBi. In the high-frequency band, it realizes a relative bandwidth of 13.6% and a peak gain of 4.6 dBi.
Source: Micromachines
DOI: 10.3390/mi17020257
Authors: Huiru Zhang, Junwen Tang, Zhongjun Yu
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,534
OpenAlex ID: W7129090523