Array beam position control using compound slots

Details Array beam position control using compound slots Array beam position control using compound slots

1990-03-13

1992-02-11

LaRoche, Eugene R.

Communications: radio wave antennas

Antennas

Slot type

343731, H01Q 1310

Patent

active

050879219

ABSTRACT:
A waveguide slotted array is disclosed, employing compound slots in a waveguide broad wall. The phase of the voltage excited in the slot is controlled by the slot offset and angle of inclination relative to the axis. Utilization of the additional phase control provided by the compound slots allows the beam of a traveling wave slot array to be placed far from broadside, without the need to operate the array at frequencies so close to the waveguide cutoff frequency that there is unacceptable frequency sensitivity. The beam may be placed at any angle independently of which end of the array contains the input and which end the load.

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Maxum, "Resonant Slots with Independent Control of Amplitude and Phase", IRE Trans. on Antenna and Propagation, vol. AP-26, No. 2, Mar. 1978, pp. 384-389.
Elliot, "An Improved Design Procedure for Small Arrays of Shunt Slots", IEEE Trans. on Antennas and Propagation, vol. AP-31, No. 1, Jan. 1983.

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