Figure 1. Beamwidth of an Antenna [26]

From

Design and Performance Evaluation of Microstrip Antenna for Ultra-Wideband Applications Using Microstrip Feed

Gourav Misra, Arun Agarwal, Kabita Agarwal

American Journal of Electrical and Electronic Engineering. 2015, 3(4), 93-99 doi:10.12691/ajeee-3-4-2