Multi-Band Hybrid DRA for O-RAN Compliant 5G Small Cell Radio Unit
A 4-element hybrid MIMO antenna is presented for O-RAN compliant 5G small cell radio unit. The antenna design consists of U-shaped microstrip radiator elements which are designed to operate in FR1 band having impedance bandwidth of 2.16-4.5 GHz. A partial cylindrical DRA is integrated with the U-shaped microstrip for the FR2 band resonance having impedance bandwidth of 20.8 - 29.55 GHz. MIMO antenna elements are rotated 90° and placed in square arrangement resulting in the overall size of 72.12mm x 72.12mm making this antenna easily coalescent with the RFFE module of the Open RU. The antenna has a peak gain of 1.42 dB on the FR1 band and 3 dB in the FR2 band. The antenna offers omni-directional radiation characteristics making it suitable for small cell applications for both indoor as well as outdoor implementation.
Authors
- Abdulkarim AlDabbagh
- Ahmed Abu Saleh (ORCID: https://orcid.org/0000-0001-7552-0674)
- Atef A. Aburas
- Nosherwan Shoaib (ORCID: https://orcid.org/0000-0003-4767-4371)
- Ali Ahmed
- Muhammad U. Khan (ORCID: https://orcid.org/0000-0001-7070-9187)
- Asadullah
Institutions
- San Antonio College (US)
- National University of Sciences and Technology (PK)
Publication Details
- Published
- 2025-04-17
- DOI
- https://doi.org/10.1109/icmac64768.2025.11003223
- Primary Topic
- Advanced MIMO Systems Optimization
- Type
- article
- Field-Weighted Citation Impact
- 0.00