The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2014
Filed:
May. 02, 2012
Goutam Chattopadhyay, Pasadena, CA (US);
Erich T. Schlecht, Pasadena, CA (US);
Choonsup Lee, La Palma, CA (US);
Robert H. Lin, Chino, CA (US);
John J. Gill, La Crescenta, CA (US);
Seth Sin, Pasadena, CA (US);
Imran Mehdi, South Pasadena, CA (US);
Goutam Chattopadhyay, Pasadena, CA (US);
Erich T. Schlecht, Pasadena, CA (US);
Choonsup Lee, La Palma, CA (US);
Robert H. Lin, Chino, CA (US);
John J. Gill, La Crescenta, CA (US);
Seth Sin, Pasadena, CA (US);
Imran Mehdi, South Pasadena, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
A coplanar waveguide (CPW) based subharmonic mixer working at 670 GHz using GaAs Schottky diodes. One example of the mixer has a LO input, an RF input and an IF output. Another possible mixer has a LO input, and IF input and an RF output. Each input or output is connected to a coplanar waveguide with a matching network. A pair of antiparallel diodes provides a signal at twice the LO frequency, which is then mixed with a second signal to provide signals having sum and difference frequencies. The output signal of interest is received after passing through a bandpass filter tuned to the frequency range of interest.