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:
Jun. 02, 2026
Filed:
Apr. 10, 2024
California Institute of Technology, Pasadena, CA (US);
Jacob W. Kooi, Pasadena, CA (US);
Goutam Chattopadhyay, Pasadena, CA (US);
Austin Minnich, San Marino, CA (US);
CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);
Abstract
A variable temperature load (VTL) or noise source including a grounded coplanar waveguide (GCPW) comprising a first metallization patterned on a fused quartz substrate, the first metallization comprising a first end for connecting to a coaxial connector and a second end for connecting to a coplanar waveguide (CPW); the CPW coupled to a 50 ohm termination and comprising a second metallization patterned on a top surface of a crystal quartz substrate; a temperature sensing diode thermally coupled to the crystal quartz substrate and the second metallization; and a heater resistor coupled to the crystal quartz substrate via contact metallization.