A Simple Phase Shifting Technique for an Injection Locked Oscillator

A 910MHz Injection Locked BFSK Transceiver for Wireless Body Sensor Network Using Colpitts Oscillator

A 910MHz high efficiency RF transceiver for Wireless Body Area Network in medical application is presented in this paper. High energy efficiency transmitter and receiver architectures are proposed. In wireless body sensor network, the transmitter must have higher efficiency compared with the receiver because a large amount of data is sent from sensor node to receiver of the base station and sma...

Phase Noise in Externally Injection-Locked Oscillator Arrays

Previous investigations of noise in mutually synchronized coupled-oscillator systems are extended to include the effects of phase noise introduced by externally injected signals. The analysis is developed for arbitrarily coupled arrays and an arbitrary collection of coherent injected signals, and is illustrated with the specific case of linear chains of nearest neighbor coupled oscillators eith...

Injection locked oscillator lock detector

Towards an Integrated Optic Phase-locked Oscillator

A recent experiment, performed at the Massachusetts Institute of Technology, has demonstrated that by locking a microwave oscillator to an optical pulse train from a modelocked laser, exceptional timing stability can be achieved. In the experiment, a 10.225-GHz microwave oscillator was locked to an optical phase detection apparatus consisting of a modelocked laser, a Sagnac interferometer, and ...

A Simple Phase-Shifting Lateral Shearing Interferometer

A phase-shifting electronic speckle pattern shearing interferometer with a very simple shearing device is proposed. Two partially reflective glass plates are used to introduce the shear in this new interferometer. The reflection coefficients of the coatings were 0.3 and 0.7 respectively. The distance between the two glass plates controls the size of the shear. The proposed new interferometric s...