A Near Field Focused Microstrip Array for a Radiometric Temperature Sensor

Author

Stephan, K.D. ; Mead, J.B. ; Pozar, D.M. ; Wang, L. ; Pearce, J.A.

Author_Institution

Dept. of Eng. & Technol., Southwest Texas State Univ., San Marcos, TX

Volume

55

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1199

Lastpage

1203

Abstract

A low-cost radiometric temperature sensor system is described, with emphasis on the use of a 12.5 GHz near-field focused microstrip array to provide a low-profile compact product suitable for commercial and industrial applications. An overview of the temperature sensor system is given, followed by design details of the focused microstrip array, including near-field patterns and antenna efficiency measurements. Temperature measurements made with the radiometric system in a food-processing plant field test show that the antenna can resolve individual hamburger patties at a practical measurement distance

Keywords

antenna radiation patterns; microstrip antenna arrays; microwave measurement; radiometry; temperature sensors; 12.5 GHz; food-processing plant field test; near field focused microstrip array; radiometric temperature sensor; temperature measurement; Antenna measurements; Infrared sensors; Microstrip antenna arrays; Microstrip antennas; Microwave radiometry; Scattering; Sensor arrays; Temperature dependence; Temperature measurement; Temperature sensors; Microstrip arrays; microwave radiometry; near fields; temperature measurement;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.893429

Filename

4148084