A patch antenna array is a configuration where multiple flat, rectangular antennas (patch antennas) are arranged in a specific pattern to work together. This arrangement enhances the overall performance by increasing the gain, directivity, and coverage area compared to a single patch antenna. Patch antenna arrays are widely used in wireless communications, radar systems, and satellite communications due to their low profile, ease of fabrication, and ability to support beamforming. They are particularly beneficial in applications requiring directional signal transmission or reception, making them essential in modern cybersecurity for secure wireless communication links and signal monitoring.