2017/07/17 by Hossein Babashah, Babashah, Hossein, Hamid Reza Hassani +3
Engineering · #Antenna Design and Analysis #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Microwave Engineering and Waveguides #Ultra-Wideband Communications Technology
paper · pdf · doi:10.48550/arxiv.1707.05122
openalex publication_date 2017/07/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A compact multiple-input-multiple-output (MIMO) antenna with very high isolation is proposed for ultrawide-band (UWB) applications. The antenna with a compact size of 30.1x20.5 mm2 (0.31λ0 x0.21λ0 ) consists of two planar-monopole antenna elements. It is found that isolation of more than 25 dB can be achieved between two parallel monopole antenna elements. For the low-frequency isolation, an efficient technique of bending the feed-line and applying a new protruded ground is introduced. To increase isolation, a design based on suppressing surface wave, near-field, and far-field coupling is applied. The simulation and measurement results of the proposed antenna with the good agreement are presented and show a bandwidth with S 11 < -10 dB, S 12 < -25 dB ranged from 3.1 to 10.6 GHz making the proposed antenna a good candidate for UWB MIMO systems.