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A Novel Monopole Ultra-Wide-Band Multiple-Input Multiple-Output Antenna with Triple-Notched Characteristics for
Shahid Basir1, Ubaid Ur Rahman Qureshi2, Fazal Subhan3
1School of Engineering & Applied Sciences, ISRA University, Islamabad 44000, Pakistan.
Sensors (Basel, Switzerland)
|August 12, 2023
Summary
This study presents a compact Ultra-Wide-Band (UWB) Multiple-Input Multiple-Output (MIMO) antenna with triple-notched frequencies for reduced interference. The novel design ensures high isolation and polarization diversity for wireless systems.
Area of Science:
- Electromagnetics and Antenna Design
- Wireless Communication Systems
Background:
- Ultra-Wide-Band (UWB) systems require antennas capable of operating across a broad frequency spectrum.
- Multiple-Input Multiple-Output (MIMO) antenna systems enhance wireless communication performance through spatial diversity.
- Interference from narrowband systems can degrade UWB performance, necessitating effective filtering mechanisms.
Purpose of the Study:
- To introduce a novel monopole 4x4 UWB-MIMO antenna system.
- To achieve triple-notched frequency characteristics for interference mitigation.
- To demonstrate high isolation and polarization diversity in a compact antenna design.
Main Methods:
- Design and simulation of a monopole antenna with Complementary Split-Ring Resonator (CSRR) etching and a C-shaped curve.
- Integration of CSRR elements on the feed line and ground plane for narrowband filtering.
- Analysis of mutual coupling between CSRR elements to achieve MIMO benefits.
Main Results:
- The proposed antenna exhibits triple-notched bands at 4.5 GHz, 5.5 GHz, and 8.8 GHz, targeting C-band, WLAN, and satellite frequencies.
- High isolation and polarization diversity were achieved due to CSRR mutual coupling in the MIMO configuration.
- Simulated and measured results demonstrated good agreement, validating the antenna's performance.
- The compact prototype dimensions are (60.4 × 60.4) mm².
Conclusions:
- The developed UWB-MIMO antenna effectively mitigates interference using its triple-notched design.
- The antenna is suitable for wireless communication and portable systems requiring broad bandwidth and reliable signal transmission.
- The novel structure offers a promising solution for advanced wireless applications.
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