Non-radiative dielectric waveguide modulator having...

Details Non-radiative dielectric waveguide modulator having... Non-radiative dielectric waveguide modulator having...

2006-01-17

2006-01-17

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Long line elements and components

Waveguide elements and components

C333S248000, C333S02200F, C333S08100R, C333S117000, C332S149000, C332S178000, C455S313000, C455S323000, C375S320000

Reexamination Certificate

active

06987434

ABSTRACT:
A non-radiative dielectric (NRD) waveguide modulator is provided having a waveguide type hybrid coupler, in which by forming a waveguide type 180° hybrid coupler and waveguide as a single body, the structure is simplified and manufacturing processes are reduced. The NRD waveguide modulator includes a conducting housing having a lower conducting plate and an upper conducting plate; a hybrid coupler which is processed in the form of conduit lines inside the conducting housing and includes a ring portion and a plurality of waveguides extended from the ring portion in the radial direction, in modulator, and a termination which is connected to an isolation port that is an end of any one waveguide of the hybrid coupler and terminates a signal reflected by the modulator by consuming the signal internally.

REFERENCES:
patent: 5920245 (1999-07-01), Ishikawa et al.
patent: 6867660 (2005-03-01), Kitamori et al.
patent: 6868258 (2005-03-01), Hayata et al.
patent: 6871056 (2005-03-01), Cho et al.
patent: 2002-232212 (2002-08-01), None

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