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Radio Frequency (RF) Filter Tuning Element

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-19-C-1945
Agency Tracking Number: F18A-015-0099
Amount: $749,985.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: AF18A-T015
Solicitation Number: 18.A
Solicitation Year: 2018
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-08-21
Award End Date (Contract End Date): 2021-08-21
Small Business Information
2071 Lemoine Avenue Suite 302
Fort Lee, NJ 07024
United States
DUNS: 145051095
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Johana Yan
 Lead Engineer - RF Power Amplifier Systems
 (858) 480-1628
Business Contact
 Kamran Mahbobi
Phone: (201) 242-9805
Research Institution
 University of California San Diego
 Professor Shadi A. Dayeh Professor Shadi A. Dayeh
9500 Gilman Drive #0934
La Jolla, CA 92093
United States

 (858) 534-5171
 Nonprofit College or University

To meet the requirements of the AF18A-T015 solicitation, MaXentric and University of California San Diego are proposing the development of a low loss, high linearity capacitor. The tunable capacitor target is a compact integrated design, capable of a tuning range up to 4:1, with a minimum Q of 80 at 4 GHz, and handling up to 20W CW. During phase I, UCSD studied a novel varactor structure to improve the high performance GaN varactors previously demonstrated. Experimental large area GaN on QST and GaN on GaN mesa diodes during Phase I have shown excellent performance reducing leakage as expected, with high yield and reproducible as-designed C-V characteristics. Switched bank of capacitors using GaN MMIC process have been studied by MaXentric. Trade-off results between Q, power handling, and tuning range have been studied. Depending on the targeted applications, the varactor alone or assisted by a switched bank of capacitors can be used. During Phase II, the team will fabricate varactors with appropriately narrow fin geometries, and provide tunable capacitors that will have a wide range of possible applications. Specific demonstrations will be done in band-pass or band-stop filters.

* Information listed above is at the time of submission. *

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