CIRCULAR CAVITY SLOT ANTENNA
Patent
·
OSTI ID:4252239
A small-size antenna having a doughnut-shaped field pattern and which can act both as an antenna and a resonant circuit is described. The antenna is of the slotted type and comprises a resonant cavity with a center hole. A circular slot is provided in one wall of the cavity concentric with the hole and a radio frequency source is connected across the slot. The pattern and loading of the antenna are adjusted by varying the position and shape of a center element slidably disposed within the hole and projecting from the slotted side of the resonant cavity. The disclosed structure may also be used to propagate the oscillator signal down a transniission line by replacing the center element with one leg of the transmission line in a spaced relation from the walls of the cavity.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-013506
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2867803
- OSTI ID:
- 4252239
- Country of Publication:
- United States
- Language:
- English
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