A Compact Single-Feed Circularly Polarized Microstrip Antenna with Symmetric and Wide-Beamwidth Radiation Pattern

Table 4

Measured and simulated HPBW and 3 dB AR coverage at 1.55 Ghz.

	𝜑=0^∘	𝜑=45^∘	𝜑=90^∘	𝜑=135^∘
HPBW (°)
Measured	−53–56	—	−53–50	—
Simulated	−55–55	−56–56	−55–55	−56–56
3 dB AR coverage (°)
Measured	−89–83	—	−80–79	—
Simulated	−101–101	−92–92	−88–88	−92–92