Design and Analysis of Compact Self-Multiplexing Antenna Based on Half-Mode Substrate-Integrated Circular and Rectangular Cavities
Year: 2025
Type: conference-paper
Abstract: This paper presents the design and analysis of a compact self-multiplexing antenna (SMA) for pentaband applications.The proposed antenna is built using half-mode (HM) substrate-integrated circular and rectangular cavities loaded with slots.The HM circular cavity is excited through three 50 Ω microstrip lines, which facilitate three distinct frequency bands.In contrast, the HM rectangular cavity is activated using two 50 Ω coaxial probes, yielding two different operating frequencies.Thus, the proposed SMA operates at 3.91 GHz (5G band), 4.4 GHz (5G band), 4.99 GHz (5G band), 5.83 GHz (WLAN/WiMAX), and 6.59 GHz (Extended C-band).The radiation process, operating principle, and frequency tunability are explored in depth.The proposed SMA features a compact footprint area of 0.43λ 2 g and attains an isolation level exceeding 24.5 dB.The antenna achieves realized gains of 3.46 dBi, 3.23 dBi, 3.44 dBi, 5.19 dBi, and 4.23 dBi, along with efficiencies exceeding 82%, 87%, 92%, 71%, and 90% at frequencies of 3.91 GHz, 4.4 GHz, 4.99 GHz, 5.83 GHz, and 6.59 GHz, respectively.
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4413071769