Device for reflecting electromagnetic radiation

Details Device for reflecting electromagnetic radiation Device for reflecting electromagnetic radiation

2007-05-29

2007-05-29

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S7000MS

Reexamination Certificate

active

10997422

ABSTRACT:
A reflectarray utilizes switching devices with non-ideal impedance characteristics to vary the impedance of reflecting elements. The antennas of the reflecting elements are configured as a function of the impedance of the non-ideal switching devices to provide optimal phase-amplitude performance. In particular, the antennas are configured such that the impedance of each antenna is proportional to the square root of the impedance of the non-ideal switching devices when in an on state and when in an off state.

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