Linearization of a harmonic radar transmitter by feed-forward filter reflection

Author

Gallagher, Kyle A. ; Narayanan, Ram M. ; Mazzaro, Gregory J. ; Sherbondy, Kelly D.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

fYear

2014

fDate

19-23 May 2014

Firstpage

1363

Lastpage

1368

Abstract

In order to generate a detectable harmonic-radar response from an electronic device, the required power-on-target is comparable to that observed directly below a cellular base station. Also, the signal emitted from the target is often very weak. This weak signal must not be masked by harmonics generated by the radar itself. Thus, high transmit power must be provided with high linearity for detection of a nonlinear-radar target. In this paper, a technique is presented which achieves better than 135 dBc harmonic distortion at 7 W output power, at transmit frequencies between 800 MHz and 1 GHz.

Keywords

feedforward; filtering theory; harmonic distortion; harmonic generation; object detection; radar detection; radar transmitters; cellular base station; electronic device; feedforward filter reflection; frequency 800 MHz to 1 GHz; harmonic distortion; harmonic radar transmitter linearization; harmonic-radar response detection; harmonics generation; nonlinear-radar target detection; power 7 W; Filter banks; Harmonic analysis; Microwave filters; Power harmonic filters; Radar; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2014 IEEE

Conference_Location

Cincinnati, OH

Print_ISBN

978-1-4799-2034-1

Type

conf

DOI

10.1109/RADAR.2014.6875812

Filename

6875812