scholarly journals Millimeter-Wave Multi-Port Front-End Receivers: Design Considerations and Implementation

2018 ◽  
Author(s):  
Chaouki Hannachi ◽  
Serioja Ovidiu Tatu
Keyword(s):  
Millimeter Wave ◽  
Design Considerations ◽  
Front End

scholarly journals MINIATURE ULTRA-LOW-POWER BIOPOTENTIAL AMPLIFIER FOR POTABLE APPLICATIONS

2005 ◽  
Vol 17 (02) ◽  
pp. 108-110 ◽  
Author(s):  
CHIA-NAN CHIEN ◽  
FU-SHAN JAW
Keyword(s):  
Power Saving ◽  
Practical Application ◽  
High Input ◽  
High Input Impedance ◽  
Ultra Low Power ◽  
Rejection Ratio ◽  
Design Considerations ◽  
Front End ◽  
Biomedical Systems ◽  
Biopotential Amplifier

A high input impedance, high common mode rejection ratio, fixed gain (×100) amplifier is proposed for recording biopotential signals. This miniature amplifier affords the feature of power saving. It can continuously function for as long as 3 months with a small battery (3.3 V, 2.2 g). A practical application of this amplifier for ECG recording has shown that it has great potential for recording other biomedical signals. Hence, this amplifier can be used as a building block at the front end of most biomedical systems. Detailed design considerations and circuit implementation of this amplifier are described to facilitate its acceptance as a common module for this purpose.

A Short-Range Millimeter-Wave Detector System

2013 ◽  
Vol 347-350 ◽  
pp. 102-106
Author(s):  
Shu Sheng Peng ◽  
Feng Xu ◽  
Li Wu ◽  
Jian Zhong Xu
Keyword(s):  
Millimeter Wave ◽  
High Speed ◽  
Short Range ◽  
Digital Signal ◽  
Low Noise ◽  
Detector System ◽  
Wave Detector ◽  
Front End ◽  
Noise Amplifier ◽  
Heterodyne Signal

This paper is focused on a millimeter-wave detector system that works at self-heterodyne mode. The detector antenna and MMW front-end are integrated and a weak heterodyne signal is amplified with a low-noise amplifier. After high-speed sampled with a high-speed A/D, digital signal are processed in a FPGA. Some experiment results are shown finally.

Design of Millimeter-Wave Emission Component

2014 ◽  
Vol 1046 ◽  
pp. 301-304
Author(s):  
Shuang Zhao ◽  
Le Le Zhang
Keyword(s):  
Millimeter Wave ◽  
Second Harmonic ◽  
Transmission Band ◽  
Transmission Power ◽  
Test Results ◽  
Compact Structure ◽  
Emission Component ◽  
Front End ◽  
Wave Emission ◽  
Structure Test

In recent years, with the development of millimeter-wave MMIC chip, millimeter wave technology has been widely used. The millimeter-wave transmitter front-end is designed in this paper. By using second harmonic mixers, we reduce the operating frequency of the oscillator. By using the side exit microstrip - waveguide structure, we strengthen the compact structure. Test results show that the transmitter front-end transmission power is 33dB and its transmission band is 35.5-36GHz.

scholarly journals A Novel Dual-Polarization Total Power Radiometer with Single Channel

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Yiming Niu ◽  
Can Cui ◽  
Guo Yang ◽  
Wen Wu
Keyword(s):  
Millimeter Wave ◽  
Single Channel ◽  
Total Power ◽  
Dual Polarization ◽  
Front End ◽  
Rf Front End ◽  
False Target

A dual-polarization total power millimeter wave (MMW) radiometer with single channel was proposed in this paper. It completed the subtraction of two orthogonally polarized signals in the RF front end. The system used one channel to achieve the function of two channels. On the basis of discussing the theory and the configuration of the system, the performance of the system and the ability to identify the false target were analyzed and simulated. The results showed the radiometer could solve the problem that the performance of dual-polarization radiometer becomes weak because of gain inconformity with two channels. The system was cheap and small and could identify the false target which has different apparent temperatures at vertical- and horizontal-polarized radiations.

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