Accession Number:

ADA370115

Title:

Active Quasi-Optical Devices

Descriptive Note:

Final progress rept. 10 May 95-9 May 99

Corporate Author:

CALIFORNIA INST OF TECH PASADENA

Personal Author(s):

• Rutledge, David

Report Date:

1999-10-06

Pagination or Media Count:

9.0

Abstract:

In active quasi-optics, we demonstrated the first successful monolithic HBT and pHEMT millimeter-wave grid amplifiers. In addition, we demonstrated a diode doubler grid with a record output of 24 mW at 1 THz. We also developed a series of Class-E amplifiers for communications and radar that are based on power MOSFETs with output powers in the frequency range from 7 to 14 MHz of 300 to 500 W, and efficiencies of 90. We recently extended this work to demonstrate VHF and UHF Class-E amplifiers.

Descriptors:

• *MILLIMETER WAVES
• *POWER AMPLIFIERS
• DIODES
• HETEROJUNCTIONS
• RADIOFREQUENCY AMPLIFIERS
• BIPOLAR TRANSISTORS
• MOSFET SEMICONDUCTORS
• TRANSISTOR AMPLIFIERS
• HIGH ELECTRON MOBILITY TRANSISTORS

Subject Categories:

• Electrical and Electronic Equipment
• Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE