Frequency Reconfigurable Circular Patch Antenna with an Arc-Shaped Slot Ground Controlled by PIN Diodes

Table 1

Switch configuration and corresponding antenna properties.

States						Simulated (GHz)	Measured (GHz)	Simulated −10 dB bandwidth (MHz)	Measured −10 dB bandwidth (MHz)	Simulated radiation efficiency	Measured peak gain (dB)
F1	0	0	0	0	0	1.82	1.84	50	60	72%	7.10
F2	1	1	0	1	1	2.18	2.18	60	74	55%	4.13
F3	0	1	0	1	0	2.23	2.22	65	70	57%	4.60
F4	0	0	1	0	0	2.35	2.38	80	96	72%	4.36
F5	0	1	1	1	0	2.41	2.44	80	80	67%	4.72
F6	1	1	1	1	1	2.46	2.46	80	90	56%	4.69