Parametric receiving array beam patterns using a phase demodulator
نویسندگان
چکیده
منابع مشابه
Phased array antenna using MEMS phase shifter
This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...
متن کاملPhotonic phase-locked-loop linear phase demodulator
Design and experimental validation of a simple photonic phase-lockedloop (PPLL) linear phase demodulator employing a novel attenuating counter propagating (ACP) in-loop phase modulator are presented. The ACP in-loop phase modulator is free of propagation delay, allowing stable operation of the PPLL with large gain. Highly linear optical phase demodulation was observed and the measured spurious ...
متن کاملSensitivity Enhancement Using Parametric Amplification in a Resonant Sensing Array
In this work we describe the parametric amplification of a multi-degree of freedom resonant chemical mass sensing array. We experimentally demonstrate that parametric forcing can be employed to increase the effective resonant quality factor of the array structure via an applied base motion containing the appropriate frequency content. Applying parametric forcing in this manner is simple and ali...
متن کاملIn-Beam Phase Referencing with the Deep Space Network Array
The Deep Space Network Array of the future provides an intriguing possibility of using the techniques of in-beam phase referencing to determine the position of spacecraft with accuracy at the level of 0.1 nrad. In this article, we discuss the prospects for carrying out such measurements at both 8.4 GHz (X-band) and 32 GHz (Ka-band). Our study suggests that at X-band in-beam calibration may be a...
متن کاملA Novel Sample Based Quadrature Phase Shift Keying Demodulator
This paper presents a new practical QPSK receiver that uses digitized samples of incoming QPSK analog signal to determine the phase of the QPSK symbol. The proposed technique is more robust to phase noise and consumes up to 89.6% less power for signal detection in demodulation operation. On the contrary, the conventional QPSK demodulation process where it uses coherent detection technique requi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1976
ISSN: 0001-4966
DOI: 10.1121/1.2003202