Instrumentation for Characterization and Nonlinear Modeling of Millimeter-Wave Devices and Circuits
Abstract
Instrumentation for Characterization and Nonlinear Modeling of Millimeter-Wave Devices and Circuits31 [Maki, Paul]Office of Naval ResearchThe Department of Electrical and Computer Engineering at the University of California SantaBarbara requests funds to purchase equipment necessary for improved characterization andmodeling of millimeter-wave electronic devices and circuits. This instrumentation will addressgaps in our capabilities regarding thermal and charge trapping effects, which are important foranalysis and modeling of solid-state devices, particularly those fabricated from GaN.The proposed system is composed of several components. Pulsed IV instrumentation enables theability to rapidly pulse to any point on the IV plane from a steady state bias while having thepulsed currents at both the input and output terminals recorded. Upgrades to an existing highperformancenetwork analyzer additionally allow S-parameters to be measured inside the biaspulse. The instrumentation will be integrated on a variable temperature probe station, andsoftware will be included to automate and execute measurements. By using pulsed measurementsand a temperature controlled probe station, both the occupancy of trap states and channeltemperatures are controllably varied allowing the device to be modeled accurately. From thepulsed-IV data a broad range of device characteristics can be studied and extracted includingDC-RF dispersion, thermal resistances and time constants, trapping time constants, and trapdepths. The pulsed S-parameter measurement allows the AC equivalent circuit model to beextracted within that bias pulse with time steps down to 20ns giving extremely detailedinformation of device characteristics.This system has broad and flexible range of capabilities which will greatly enhance currentresearch efforts in nonlinear modeling, device characterization, and studies of device andmaterial physics. It will integrate well with existing facilities, complementing and extendingupon current capabilities. The system will be installed in an open lab facility at UCSB, making itavailable to additional academic and commercial users.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 05, 2017
- Source ID
- N000141712378
Entities
People
- Umesh Mishra
Organizations
- Office of Naval Research
- United States Navy
- University of California, Santa Barbara