Transmitter-receiver

Details Transmitter-receiver Transmitter-receiver

1997-07-01

1999-02-02

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

342 70, G01S 728

Patent

active

058671200

ABSTRACT:
A transmitter-receiver whose overall size can be reduced by decreasing areas occupied by a bend portion and a coupler portion of a nonradiative dielectric (NRD) waveguide. The size is not restricted by the radius of curvature and the bending angle of the bend portion. In this transmitter-receiver, the NRD waveguide is adapted so that waves are transmitted in a single mode, namely, LSM01 mode. Further, an oscillator, an isolator, a mixer and a coupler are placed in the rear of a dielectric lens. Thus, the transmitter-receiver fits within the size of the antenna.

REFERENCES:
patent: 5392051 (1995-02-01), Uematsu et al.
patent: 5394154 (1995-02-01), Uematsu et al.
patent: 5416492 (1995-05-01), Takahashi et al.
patent: 5604469 (1997-02-01), Ishikawa et al.
patent: 5640700 (1997-06-01), Shingyoji et al.
patent: 5666094 (1997-09-01), Kato et al.
patent: 5717400 (1998-02-01), Uematsu et al.
patent: 5724013 (1998-03-01), Ishikawa et al.
patent: 5781086 (1998-07-01), Kato et al.

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