Abstract
We propose a simple, yet highly effective tuning method to increase the bandwidth of a waveguide voltage controlled oscillator (VCO) by applying controlled mechanical pressures to the packaged Gunn diode mounted in the waveguide cavity resonator. When we applied this method to a varactor-tuned, second-harmonic 94 GHz VCO, the bandwidth was doubled to 1 GHz with an output power over 14.8 dBm, which is suitable for frequency-modulated continuous-wave radar sensor applications.
Original language | English |
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Article number | 5710005 |
Pages (from-to) | 154-156 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 21 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2011 |
Keywords
- 94 GHz
- Bandwidth
- cavity resonator
- Gunn diode
- tuning
- voltage controlled oscillator (VCO)
- waveguide