Microwave Theory and Techniques Society/Electron Devices Society

Orange County Joint Chapter



Welcome to the OC MTT-S/ED-S Home Page!!!!


This page is designed to inform "Net-Surfers" in the Orange County area of our existence. The OC MTT-S/ED-S Joint Chapter was approved on April 30th, 2003 and will begin holding meetings soon. Please, stay tuned!

About the Microwave Theory and Techniques Society (MTT-S)

The MTT-S is a transnational society with more than 9,000 members and 80 chapters worldwide. Our society promotes the advancement of microwave theory and its applications, usually at frequencies from 200 MHz to 1 THz and beyond.

For more than 50 years the MTT-S has worked to advance the professional standing of its members and enhance the quality of life for all people through the development and application of microwave technology. As we enter into an exciting future our mission is to continue to understand and influence microwave technology.

About the Electron Devices Society (EDS)  

The field of interest for EDS is all aspects of the physics, engineering, theory and phenomena of electron and ion devices such as elemental and compound semiconductor devices, organic and other emerging materials based devices, quantum effect devices, optical devices, displays and imaging devices, photovoltaics , solid-state sensors and actuators, solid-state power devices, high frequency devices, micromechanics, tubes and other vacuum devices.

The society is concerned with research, development, design, and manufacture related to the materials, processing, technology, and applications of such devices, and the scientific, technical and other activities that contribute to the advancement of this field.

About the OC MTT-S/EDS Joint Chapter
This chapter will aim at providing its members with interesting talks on a variety of topics in the microwave and electron devices fields.

The meetings are open to anyone. You do not have to be an IEEE member to attend. However, if you are interested in becoming an IEEE and/or an MTT-S and EDS member, please visit the IEEE Home Page . Our chapter meetings provide an open forum for discussion, as well as a place to network with your fellow engineers. Who knows, you might even find a job!!





MEETING NOTICE, January 29th, 2015

IEEE Orange County Section and IEEE EDS/MTT Joint Chapter are Pleased to Present:





Prof. Hermann Schumacher, Director

Institute of Electron Devices and Circuits

University of Ulm, Germany





Date: Thursday, January 29th, 2015

What: Si/SiGe BiCMOS Transceiver ICs for a Ka band Actively Steered Reflect Array Antenna

Where: OC Plaza, 2575 McCabe Way, Irvine, CA  92614



Details: 3:00-3:45 PM Arrival

              3:45-4:45 PM Talk






As phased array applications move into the millimeter-wave range, the unit cell size becomes a serious issue.

We present a solution where four vector modulators are placed on a single Si/SiGe BiCMOS chip, which also

contains mixed-signal electronics to control phase and magnitude via a common I2C serial interface.

The signal path through the vector modulators can be reversed to allow transmit and receive operation.

Reconfiguration is achieved using MOS switches and, in one version, also an RFMEMS SPDT switch.

The RFMEMS switch is tightly integrated into the backend of line (BEOL) of the underlying BiCMOS technology;

the necessary actuation voltage is generated on chip



Speaker Biography:



Prof. Hermann Schumacher received his doctorate in engineering (Dr.-Ing.) degree from RWTH Aachen, Aachen, Germany, in 1986.

From 1986 to 1990, he was a member of technical staff at Bellcore, Red Bank, NJ, working on long-wavelength fiberoptic receivers

and on early InP-based heterojunction bipolar transistors. In 1990, he joined Ulm University, Ulm, Germany as professor in the Institute

of Electron Devices and Circuits. His research interests cover heterostructure devices (at present, most Si/SiGe HBTs and AlGaN/GaN HFETs)

and their application in microwave and millimeter-wave circuits. Prof. Schumacher was the founder of one of the first English taught Master

programs in electrical engineering in Germany and, for 17 years until June 2014, its director. He served as Vice President for Research

for Ulm University from 2000-2003, and is now, in addition to his institute appointment, also the director of Ulm University’s School

of Advanced Professional studies, which develops continuing education Master programs, a new strategic direction for Ulm University.







Would you like to suggest a topic and/or a speaker for a future talk?
Please, submit your topic/speaker to:


Chapter Officers



Vice-Chair Workshops



Héctor J. De Los Santos, Ph.D.
Dzung T. Le

Masoud Kahrizi, Ph.D.

Rajesh Prabakar

Vipul Jain, Ph.D.
Bo Pan, Ph.D.

Mohsen Zolghadri
Dantian Liu, Ph.D., L. Ac.

( NanoMEMS Research, LLC )
( Newport Media, Inc. )
( Broadcom, Inc.)

( Applied Wave Research, Inc.)

( Sabertek, Inc.)

( Broadcom, Inc.)

(Broadcom, Inc.)

(Chi Therapy Center)


Inquires may be directed to:

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To Learn About ALL IEEE Orange County Section Activities Go: Here !