Phase locked dielectric resonator oscillator design and fabrication for receiver systems

Date

2016

Author

Köksal, Remzi

Metadata

Show full item record

Item Usage Stats

204
views

0
downloads

Oscillators play an important role in transmitters and receivers. In these systems, stable frequency source and low phase noise are critical for system performance. In radio frequencies, phase locked dielectric resonator oscillators are one of the best options in terms of cost, dimension, and performance. These oscillators are widely used in systems such as RADAR, electronic warfare, and communication. In this thesis, design methodology of phase locked dielectric resonator oscillator is given, an oscillator at 8 GHz is designed, produced and measured. The oscillator output power at the design frequency is measured to be 13 dBm, and the phase noise drops down to -134 dBc/Hz at 1 MHz offset. This thesis contains the details of the design, simulation, and fabrication procedure of a low phase noise phase locked dielectric resonator oscillator.

Subject Keywords

Dielectric resonators., Oscillators, Electric., Radar transmitters., Microwave receivers.

URI

http://etd.lib.metu.edu.tr/upload/12620471/index.pdf
https://hdl.handle.net/11511/25951

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Height Estimation for Ballistic Platforms using Differential Measurements Vural, Aydin; Sengul, Orhan; Demir, Şimşek; Hizal, Altunkan (2013-10-01) Use of radio waves is a very common choice for proximity fuzes. The stand-off distance for fuzes varies between a lower and an upper limit depending on the electromagnetic reflectivity of terrain (target). If the reflectivity of the terrain is comparably higher, the return power at the receiver reaches to the threshold level more quickly and the stand-off distance increases. The work presented here introduces an approach to estimate the height of airborne ballistic platforms more precisely compared with the...
Frequency Modulated Continuous Wave Radar for Range Detection Kaya, Tevfik; Sahin, Enes Burak; Nesimoglu, Tayfun (2018-11-02) In this paper, a Frequency Modulated Continuous Wave Radar is built using radio frequency techniques. Radar can measure the nearest object's range from 2 to 30 meters with 1-meter range resolution. The design process was carried out by using computer-aided design techniques, and mathematical tools. The hardware prototype was built and measurements were carried out confirming successful operation of the range detection radar.
Broadband analogue predistortion using a distortion generator based on two-stage RF mixer topology Nesimoglu, Tayfun (2018-01-01) An analogue predistorter using a distortion generator based on a two-stage radio frequency mixer topology is presented. The proposed distortion generator achieves fundamental signal cancellation without using a signal cancellation loop or a resonant circuit, thus it generates an error signal that predominantly consists of unwanted intermodulation distortion (IMD). Measurements are performed using multi-tones, WLAN- and Terrestrial Trunked Radio (TETRA)-modulated signals. Distortion generator provides high l...
Frequency tunable microstrip patch antenna using RF MEMS technology Erdıl, Emre; Topallı, Kagan; Unlu, Mehmet; Aydın Çivi, Hatice Özlem; Akın, Tayfun (2007-04-01) A novel reconfigurable microstrip patch antenna is presented that is monolithically integrated with RF microelectromechanical systems (MEMS) capacitors for tuning the resonant frequency. Reconfigurability of the operating frequency of the microstrip patch antenna is achieved by loading it with a coplanar waveguide (CPW) stub on which variable MEMS capacitors are placed periodically. MEMS capacitors are implemented with surface micromachining technology, where a 1-mu m thick aluminum structural layer is plac...
Interference Suppression in Radio Receivers by using Frequency Retranslation Nesimoglu, T.; Charalampopoulos, Z.; Beach, M. A. (2009-04-21) In the presence of a strong received signal, non-linear radio frequency (RF) front-end components generate distortion products that add interference to a wanted signal. In this paper, an interference suppression technique using frequency retranslation is presented. When the wanted signal level is high, experimental results show a suppression of intermodulation distortion (IMD) by 25 dB. When a small wanted signal is received along with high level interferers, the technique suppresses interferers by 14 dB an...

Citation Formats

R. Köksal, “Phase locked dielectric resonator oscillator design and fabrication for receiver systems,” M.S. - Master of Science, Middle East Technical University, 2016.