ISM band to U-NII band frequency transverter and method of frequency transversion

A transverter operable to translate a transmit signal and a receive signal between a first frequency band and a second frequency band, wherein the transverter is connected between a data radio and an existing antenna tuned to the first frequency band, the transverter comprising:

• a bandswitch interposed between the data radio and the existing antenna and adapted to allow for selectively directing the transmit signal from the data radio to the existing antenna, thereby substantially bypassing the transverter;
• an input isolating device connected to the bandswitch and adapted to electrically isolate one or more components of the transverter from the data radio;
• a transmuter connected to the input isolating device and adapted to translate the transmit signal from the first frequency band to the second frequency band;
• a converter connected to the input isolating device and adapted to translate the receive signal from the second frequency band to the first frequency band;
• a dual output local oscillator connected to both the transmuter and the converter and adapted to provide a drive level thereto;
• an output isolating device connected to both the transmuter and the converter and adapted to electrically isolate the transverter;
• and
• an antenna connected to the output isolating device and tuned to the second frequency band and adapted to transmit the transmit signal and to receive the receive signal,
• wherein the transmuter includes a first input terminal and a second input terminal, and further includes—
• an attenuator adapted to receive the transmit signal from the input isolating device and to attenuate the transmit signal and to allow for adjusting throughput gain between the first input terminal and the second input terminal, and further adapted to provide a broadband match for both the input isolating device and the data radio,
• a frequency conversion device following the attenuator and adapted to translate the attenuated transmit signal from the first frequency band to the second frequency band,
• a bandpass filter following the frequency conversion device and adapted to filter the transmit signal to substantially remove an undesirable signal element,
• an amplifier stage following the bandpass filter and adapted to amplify the transmit signal, and
• a low-pass filter following the amplifier stage and adapted to filter the transmit signal to reduce a spurious element above the second frequency band.

A transverter operable to translate a transmit signal and a receive signal between a first frequency band and a second frequency band, wherein the transverter is connected between a data radio and an existing antenna tuned to the first frequency band, the transverter comprising:

• a bandswitch interposed between the data radio and the existing antenna and adapted to allow for selectively directing the transmit signal from the data radio to the existing antenna, thereby substantially bypassing the transverter;
• an input isolating device connected to the bandswitch and adapted to electrically isolate one or more components of the transverter from the data radio;
• a transmuter connected to the input isolating device and adapted to translate the transmit signal from the first frequency band to the second frequency band;
• a converter connected to the input isolating device and adapted to translate the receive signal from the second frequency band to the first frequency band, wherein a noise figure characteristic of the converter is matched to a path loss difference between the first frequency band and the second frequency band;
• a dual output local oscillator connected to both the transmitter and the converter and adapted to provide a drive level thereto;
• an output isolating device connected to both the transmuter and the converter and adapted to electrically isolate the transverter;
• and
• an antenna connected to the output isolating device and tuned to the second frequency band and adapted to transmit the transmit signal and to receive the receive signal.
• 7.The transverter as set forth in claim 6, wherein the first frequency band is approximately 2.4 GHz, and the second frequency band is approximately between 5.0 GHz and 6.0 GHz.

A transverter operable to translate a transmit signal and a receive signal between a first frequency band and a second frequency band, wherein the transverter is connected between a data radio and an existing antenna tuned to the first frequency band, the transverter comprising:

• a bandswitch interposed between the data radio and the existing antenna and adapted to allow for selectively directing the transmit signal from the data radio to the existing antenna, thereby substantially bypassing the transverter;
• an input isolating device connected to the bandswitch and adapted to electrically isolate one or more components of the transverter from the data radio;
• a transmuter connected to the input isolating device and adapted to translate the transmit signal from the first frequency band to the second frequency band;
• a converter connected to the input isolating device and adapted to translate the receive signal from the second frequency band to the first frequency band;
• a dual output local oscillator connected to both the transmuter and the converter and adapted to provide a drive level thereto;
• an output isolating device connected to both the transmuter and the converter and adapted to electrically isolate the transverter;
• and
• an antenna connected to the output isolating device and tuned to the second frequency band and adapted to transmit the transmit signal and to receive the receive signal,
• wherein the converter includes—
• a bandpass filter adapted to filter the receive signal to substantially remove an undesirable signal element,
• a low noise amplifier stage following the bandpass filter and adapted to amplify the receive signal, and further adapted to provide a low noise figure and an additional gain at the second frequency band,
• a frequency conversion stage following the low noise amplifier stage and adapted to translate the receive signal from the second frequency band to the first frequency band,
• a low-pass filter stage following the frequency conversion stage and adapted to filter the amplified receive signal to reduce a spurious element outside the second frequency band,
• an amplifier stage following the low-pass filter stage and adapted to amplify the translated receive signal, and
• an attenuator following the amplifier stage and adapted to reduce a total gain through the converter.

A transverter operable to translate a transmit signal and a receive signal between a first frequency band and a second frequency band, wherein the transverter is connected between a data radio and an existing antenna tuned to the first frequency band, the transverter comprising:

• a bandswitch interposed between the data radio and the existing antenna and adapted to allow for selectively directing the transmit signal from the data radio to the existing antenna, thereby substantially bypassing the transverter;
• an input isolating device connected to the bandswitch and adapted to electrically isolate one or more components of the transverter from the data radio;
• a transmuter connected to the input isolating device and adapted to translate the transmit signal from the first frequency band to the second frequency band;
• a converter connected to the input isolating device and adapted to translate the receive signal from the second frequency band to the first frequency band;
• a dual output local oscillator connected to both the transmuter and the converter and adapted to provide a drive level thereto;
• an output isolating device connected to both the transmuter and the converter and adapted to electrically isolate the transverter;
• and
• an antenna connected to the output isolating device and tuned to the second frequency band and adapted to transmit the transmit signal and to receive the receive signal,
• wherein the dual output local oscillator is adapted to generate an LO signal, the dual output local oscillator including—
• a phase-locked-loop adapted to set a fundamental frequency of the LO signal, wherein the fundamental frequency determines how translation occurs between the first frequency band and the second frequency band,
• a fundamental frequency amplifier adapted to amplify the LO signal,
• a frequency multiplier adapted to reduce the fundamental frequency of the LO signal by one-half, and
• first and second narrow-band harmonic frequency amplifiers adapted to provide the LO signal to both the transmuter and the converter while increasing electrical isolation between the transverter and the converter.

A transverter operable to translate a transmit signal and a receive signal between a first frequency band and a second frequency band, wherein the transverter is connected between a data radio and an existing antenna tuned to the first frequency band, the transverter comprising:

• a bandswitch interposed between the data radio and the existing antenna and adapted to allow for selectively directing the transmit signal from the data radio to the existing antenna, thereby substantially bypassing the transverter;
• an input isolating device connected to the bandswitch and adapted to electrically isolate one or more components of the transverter from the data radio;
• a transmuter connected to the input isolating device and adapted to translate the transmit signal from the first frequency band to the second frequency band;
• a converter connected to the input isolating device and adapted to translate the receive signal from the second frequency band to the first frequency band;
• a dual output local oscillator connected to both the transmuter and the converter and adapted to provide a drive level thereto;
• an output isolating device connected to both the transmuter and the converter and adapted to electrically isolate the transverter;
• and
• an antenna connected to the output isolating device and tuned to the second frequency band and adapted to transmit the transmit signal and to receive the receive signal, wherein the antenna has a standard helix design wherein wire is wound in a λ circumference with a ¼λ pitch over a λ diameter ground plane to provide a bandwidth covering substantially the entire second frequency band, and further providing approximately between 6dB and 20dB of gain.