Wave transmission lines and networks – Coupling networks – Delay lines including long line elements
Patent
1997-08-21
2000-07-18
Lee, Benny T.
Wave transmission lines and networks
Coupling networks
Delay lines including long line elements
333164, H01P 1185
Patent
active
060913118
ABSTRACT:
The stripline-slotline digital phase shifter is located between a ground plane associated with a patch antenna and another ground plane associated with the other patch antenna, or other output circuits. It is comprised of a section of stripline adjacent to a slot in ground plane associated with the receiving patch antenna which transitions an input electromagnetic signal to a plurality of oval slotlines, called bit circuits, of varying lengths which form a delay circuit by shifting the phase of the input electromagnetic signal. The varying lengths of slotline are switched into and out of the circuit to provide a predetermined amount of delay and the phase adjusted electromagnetic signal is transitioned to portion of stripline adjacent to a slot associated with the transmission patch antenna or other output circuits.
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Edelberg Barry A.
Lee Benny T.
Stockstill Charles J.
The United States of America as represented by the Secretary of
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