Modulators – Amplitude modulator – Plural modulation
Patent
1994-06-17
1995-10-31
Mis, David
Modulators
Amplitude modulator
Plural modulation
332145, 332159, 332163, 455102, 455108, 455111, H03C 100, H03C 300
Patent
active
054633575
ABSTRACT:
A wide-band microwave modulator arrangement for an information transmission system, such as a video signal distribution system, in which signals from a microwave carrier signal source are split and directed over a first path comprising an attenuator and a second path comprising phase shift means and a balanced modulator, the output signals from the two paths being combined for transmission. Signals from the carrier signal source may also be directed over a third path including phase shift means and a second balanced modulator, amplified output signals from the first two paths being combined with output signals from this third path before transmission.
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Mis David
Plessey Semiconductors Limited
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