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| Content Provider | IET Digital Library |
|---|---|
| Author | Ruiz, Juan M. Ávila Pozas, Laureano Moreno Valdeiglesias, Elena Durán Mártir, Alvaro Moscoso Fernández, Iñigo Molina Rubio, Jose de Oliva |
| Abstract | A frequency locked loop (FLL) for phase noise reduction of wideband voltage controlled oscillators is proposed. The key building block of the system is a low noise (−160 dBV/Hz) and high sensitivity (22 V/GHz) delay line frequency discriminator with 5–8 GHz coverage, which makes use of a high performance multilayer hybrid. The authors derive closed-form, universal design equations for the maximum noise reduction and stability of the FLL circuitry. Application of the proposed technique to a state-of-the-art voltage controlled oscillator operating in the 5–8 GHz band yields a phase noise reduction of 8–10 dB at 100 kHz and 5 dB at 1 MHz off the carrier, which shows the results are in good agreement with the simulated results; so phase noise better than −107 dBc/Hz at 100 kHz and better than −123.5 dBc/Hz at 1 MHz is obtained. |
| Starting Page | 869 |
| Ending Page | 875 |
| Page Count | 7 |
| ISSN | 17518725 |
| Volume Number | 7 |
| e-ISSN | 17518733 |
| Issue Number | Issue 11, Aug (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/7/11 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2013.0114 |
| Journal | IET Microwaves, Antennas & Propagation |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Delay Line Frequency Discriminator Demodulator Discriminators And Mixers FLL FLL Circuitry Stability Frequency 1 MHz Frequency 100 KHz Frequency 5 GHz to 8 GHz Frequency Locked Loop Architecture Frequency Locked Loops High Performance Multilayer Hybrid Maximum Noise Reduction Microwave Circuit And Device Microwave Oscillator Modulator Oscillator Phase Noise Phase Noise Reduction Universal Design Equation Voltage-controlled Oscillator Wideband Low-noise Microwave Oscillator Wideband Voltage Controlled Oscillator |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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