Abstract: A 1×2 antenna array with three-parameter independently controllable reconfiguration of polarization, frequency and radiation pattern is proposed. One C-shaped slot and two PIN diodes are ...
Abstract: This paper presents a switch-beam circular array antenna using pattern reconfigurable Yagi-Uda antenna. A two-beam switching Yagi-Uda antenna is applied as an array element. The 3-element ...
Some rashes look like ringworm but aren't, such as those caused by Lyme disease, eczema, and other conditions. You’ll need to see your healthcare provider to diagnose any circular rash that persists ...
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