Design of Frequency- and Pattern-Reconfigurable Wideband Slot Antenna

Table 1

Operation modes of antenna.

Diodes	D1	D2	D3	D4	Frequency band (GHz)
Mode 1	Off	Off	On	On	3.25–3.88
Mode 2	Off	Off	Off	On	3.38–3.94
Mode 3	Off	Off	On	Off	3.38–3.94
Mode 4	On	On	On	On	3.69–4.34
Mode 5	On	On	Off	On	3.61–4.2
Mode 6	On	On	On	Off	3.61–4.2