Multi-band Series-Fed Millimeter Wave Array Antenna with LP and CP Characteristics for 5G Applications
1Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, India
2Department of Information and Communication Technology, Manipal Institute of Technology, Manipal Academy of Higher Education, India
3Department of Electronics and Communication Engineering, Manipal Institute of Technolgy, Manipal Academy of Higher Education, India
4Department of Electronics and Communication Engineering, School of Electronics, Devi Ahilya University, India
5E&C, Manipal Institute of Technology, India
*Author to whom correspondence should be addressed:
E-mail: tanweer.ali.example@university.edu (TA)
E-mail: tanweer.ali.example@university.edu (TA)
Received: August 06, 2024 | Revised: April 16, 2025 | Accepted: April 17, 2025 | Published: June 2025
Abstract
The article presents the multi-band, left-hand circular polarized antenna array for millimeter-wave applications. The single radiating element has an orthogonal feed configuration from the single port. Thus, by adjusting the length of the orthogonal feed equal to λ_1/2 at 28 GHz, an approximately 150° phase difference between the two points is achieved. As a result, a left-hand circular polarization is achieved. Further, the bandwidth and radiation pattern are improved by arranging the radiating element along the one-dimension array (in the y-axis) and feeding it in series at the center. This is to achieve maximum antenna efficiency and reduce the losses. Consequently, penta resonances are generated at 27, 28, 31.5, 34.25, and 37.2 GHz with decent bandwidths of |S11| ≥ 10 dB are 26.7-26.95, 27.31-30.1, 31.18-31.65, 34.2-34.4, 37.2-37.85 GHz. The array antenna has resulted in circular polarization (CP) at 28 and 37.5 GHz and linear polarization (LP) at other bands. The achieved radiation is a narrow beam in a broadside direction with a half-power beamwidth of < 12°. The antenna LP gain ranges from 12 to 14.4 dBi in the band of interest.
Keywords
millimeter wave ; multiband ; 5G ; Array antenna ; narrow beam ; series-fed
Available Repositories
Share Article
Article Metrics
--
Views
--
Downloads
--
Citations
Export Citation
Full Text
