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In general, the radiation pattern of an antenna array can be predicted by the array factor and the radiation pattern of the array element. However, the radiation pattern of a reconfigurable slot-ring antenna varies with ground plane size. To explore the reconfigurable slot-ring antenna array performance, the effects of the ground plane size on radiation pattern of the reconfigurable slot-ring antenna...
A novel design of frequency reconfigurable slot-ring antenna is proposed. The reconfigurability is achieved by using PIN diode switches across each slot. Two operating states are defined based on different states of the switches (ON or OFF). Separate microstrip feed lines are used to excite the antenna at lower (2.23GHz) and higher (6.81 GHz) frequency bands and two via holes are etched away near...
A novel synthesis technique to integrate high-Q 3-D filters with highly efficient slot antennas is presented in this paper. This technique allows for compact integration of 3-D filters and antennas with very high antenna efficiency and significantly reduced form factor of integrated RF front ends. Prototype four-pole Chebyshev cavity filters integrated with slot antennas are demonstrated at X-band...
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