Performance Analysis of Movable Antenna Considering Practical Radiation Patterns
Year: 2026
Type: conference-paper
Abstract: Movable antenna (MA) systems improve wireless performance by utilizing small-scale spatial fading through strategic antenna repositioning. Most current MA analyses rely on ideal isotropic radiation, which fails to accurately depict the behavior of practical antenna designs. This research assesses the influence of realistic radiation characteristics on MA effectiveness. A 2.4 GHz microstrip patch antenna has been designed, and its simulated three-dimensional gain pattern is integrated into a multipath channel model. The system’s performance is evaluated for both fixed and movable configurations under isotropic and realistic radiation scenarios using SNR-based metrics. Simulation findings indicate that spatial repositioning leads to notable performance enhancements in both situations. The comparison reveals that while realistic radiation patterns impact absolute SNR levels, the relative spatial gain obtained through antenna movement tends to remain fairly consistent with isotropic assumptions.
Institution: Prasad V. Potluri Siddhartha Institute of Technology
Language: English
Topic: Antenna Design and Analysis
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7224909855