US 7,116,706 B2 · Single oscillator transceiver frequency plan

Abstract

A frequency plan is provided for particular use in a transceiver. Advantageously, a single oscillator may be used to generate desired frequency signals. One or more power splitters receive the signal and equally divide the signal into first and second signals having a frequency substantially equal to the original. Multipliers on each arm of the transceiver receive a signal and increase the frequency of the signal. In one exemplary embodiment, multiple signals having different frequencies may be transmitted over the same cable due in part to the generated frequency separation between the signals. In another exemplary embodiment, multiple signals may be transmitted over multiple cables. Additionally, multiple signals over one or more cables may be transmitted at or below 3 GHz.

Claims7

Dependent claims

A fully duplexed transceiver operating in the Ku frequency band having a transmitted signal and a received signal, the fully duplexed transceiver comprising:

a single oscillator configured to generate an oscillator signal at a desired frequency;
a power splitter configured to receive said oscillator signal and to divide said signal into first and second signals having a frequency substantially equal to said desired frequency of said oscillator signal;
a first multiplier configured to receive said first signal and to increase the frequency of said first signal;
and
a second multiplier configured to receive said second signal and to increase the frequency of said second signal;
and
wherein the increased frequencies of said first and second signals represent a two-thirds relationship between the frequencies.

4 more elements

A ground satellite communication system operating in the Ku band frequencies, said system comprising:

an indoor unit and an outdoor unit in communication with said indoor unit, said outdoor unit comprising a transceiver system having:
a single oscillator, associated with a fully duplex transceiver operating in the Ku frequency band, configured to generate an oscillator signal at a desired frequency;
a signal splitter configured to receive said oscillator signal and to divide said signal into two substantially equal oscillator signals, wherein said two oscillator signals have different frequencies and are transmitted over a single cable at the same time;
a receiving section configured to receive a signal comprising a received frequency, said receiving section coupled to a first multiplier configured to receive one of said oscillator signals and to increase the frequency of said oscillator signal, a receiving filter of said receiving section configured to pass a received filtered signal having a frequency representing a difference between said received signal frequency and said first multiplied signal;
and
a transmitting section configured to transmit a signal comprising a transmitted frequency different than said received frequency, said transmitting section coupled to a second multiplier configured to receive the other oscillator signal and to increase the frequency of said other oscillator signal such that the increased frequencies of said two oscillator signals represent a desired multiple between the two signals, a transmitting filter of said transmitting section configured to pass a transmitted filtered signal having a frequency representing a difference between said transmitted signal frequency and said second multiplied signal;
wherein the increased frequencies of said oscillator signals represent a two-thirds relationship between the frequencies.

4 more elements

Dependencies are inferred from the claim text.

Single oscillator transceiver frequency plan

Life of this patent

Single oscillator transceiver frequency plan

Life of this patent

Abstract

Claims7