Where to purchase a 1.7 GHz Oscillator

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Discussion Overview

The thread discusses the search for manufacturers of 1.7 GHz oscillators, focusing on specific requirements for output power and application with a horn antenna. Participants explore various options and considerations related to oscillator specifications and potential suppliers.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about companies that manufacture 1.7 GHz oscillators, specifying a need for a stable voltage supply and a specific frequency, suggesting that a voltage-controlled oscillator (VCO) may not be suitable.
  • Another participant asks for clarification on the application and power level required for the oscillator.
  • A participant describes the intended use of the oscillator with a horn antenna, emphasizing that the least attenuation occurs at the specified frequency and expressing a preference for a wide range of inputs with unchanged output frequency.
  • One participant suggests a typical scheme involving a local oscillator (LO) chain or synthesizer followed by a power amplifier, mentioning that many manufacturers produce these for defense applications, which can be expensive. They also suggest searching on eBay for older models at lower prices.
  • Another participant notes that achieving 25 watts output (44 dBm) is significant for a microwave circuit and mentions the availability of power amplifiers for radar applications, while also indicating that typical lab amplifiers may only provide up to 15 dBm, implying higher costs for the required power levels.

Areas of Agreement / Disagreement

Participants express various viewpoints on the specifications and requirements for the oscillator, with no consensus reached on the best approach or specific manufacturers. The discussion remains unresolved regarding the optimal solution for the stated needs.

Contextual Notes

Participants have not fully defined the assumptions regarding the oscillator's specifications, such as input range and output characteristics, nor have they resolved the implications of power levels on cost and availability.

hashmos
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Hi guys,

I was just wondering of there is any companies that manufactures a 1.7 Ghz oscillators ?

For the thing I need, I have a stable supply of voltage and I need a specfic frequencey, the one mentioned above. So a VCO, I think, is not the solution as some of you may suggest.

Please, if you now companies that do manufacture them I would greatly appreciate your help,


thanks
 
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hashmos said:
Hi guys,

I was just wondering of there is any companies that manufactures a 1.7 Ghz oscillators ?

For the thing I need, I have a stable supply of voltage and I need a specfic frequencey, the one mentioned above. So a VCO, I think, is not the solution as some of you may suggest.

Please, if you now companies that do manufacture them I would greatly appreciate your help,


thanks

What is the application? What power level?
 
Well the output of the oscillator will be connected to a horn antenna, and from its characteristics, the least attenuation occurs at this frequencey.

I prefer that the oscillator have a wide range of inputs and produces a correspnding output, with the freq. unchanged.

If you want a specific value, then it would be 25 watts as an output.of the oscillator.
 
A typical scheme is to have an LO chain or a synthesizer, and then feed it to a power amp.

there is many manufactures making these for defense, and they are quite expensive, try googling. But on ebay, you many find oscillators that are not manufactured anymore for a fraction of the cost.

some of the manufactures I'm familiar with:

macom, herley, miteq or microsource.

I don't know if they are still making "microwave bricks" that you get for any frequency.
 
hashmos said:
Well the output of the oscillator will be connected to a horn antenna, and from its characteristics, the least attenuation occurs at this frequencey.

I prefer that the oscillator have a wide range of inputs and produces a correspnding output, with the freq. unchanged.

If you want a specific value, then it would be 25 watts as an output.of the oscillator.


25 W is equal to 44 dBm, that is LOT of power for a microwave circuit. You can certainly buy power amplifiers that can do this (you can buy amplifiers meant for e.g. radar that will give you kW of power); but it is well outside what you can get out of a typical "lab" amplifer (they will typically give you 15 dBm at most).
Hence, an amplifer like this is likely to be quite expensive.
 

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