Welcome to IHE

Luftbild des IHE-GebäudesJoachim Hebeler

The Institute of Radio Frequency Engineering and Electronics (IHE) is an institute within the Faculty of Electrical Engineering and Information Technology of the division III - Mechanical and Electrical Engineering of Karlsruhe Institute of Technology (KIT). The mission of the IHE is to perform research from basic microwave technologies and systems to industrial applications. Our dream is to explore new technologies and finally help bringing them into commercial products. We are working with research grants from DFG, EU, BMBF, BMWi, AIF, ESA, DLR in cooperation with industry. Our teaching combines the relevant theory with modern technologies and state-of-the-art tools. In our laboratories and workshops, the experimental needs of excellent research and teaching are satisfied by modern high-tech equipment.

The IHE is under the cooperative management of



Image of fabricated chipsJoachim Hebeler
MMICDL Chips Arrived

The designs from the MMIC Design Lab WS2020/2021 arrived and will be measured in the next weeks. They present a great feat by the students starting from scratch creating a full transmitter and receiver. This semesters MMIC Design Lab starts from the 18.10!

Foto Sauleauprivat
Vortragsankündigung Prof. Ronan Sauleau, IETR Rennes, France

Talk by Prof. Ronan Sauleau, IETR (Institut d’Electronique et des Technologies du numéRique)

Friday, October 15th, 09:15 a.m.


"Advanced Millimeter-Wave Antenna Architectures with Beam-Shaping or Beam-Steering Capabilities"

Foto Dr. Sand
Vortragsankündigung Dr. Sc. Sand

Talk by Dr. Sc. Stephan Sand, DLR Institute of Communications and Navigation,
Monday, 18th October, 16:00


“Collision Avoidance, Virtual Coupling of Trains, Autonomous Trains −
Novel Train Localization Methods for Next Generation Railways”

Foto Collage
Neue Vorlesung „Entwurf von Mikrowellenmodulen“

Das IHE bietet ab dem Wintersemester 2021/22 die neue Vorlesung „Entwurf von Mikrowellenmodulen“ an. Die Vorlesung wird von Dr. Thomas Geist, Broadband RF Units & Layout, HENSOLDT Sensors GmbH, Ulm gehalten.


Aufforderung zur Einreichung von Manuskripten für Sonderheft "Advances in Radar Sensors"

Foto MIMO-VersuchsaufbauJörg Eisenbeis
Neues 6G-Mobilfunkprojekt am IHE

Das KIT war unter Führung des IHE bei einem der vier vom BMBF geförderten 6G Hubs erfolgreich und wird in den kommenden 4 Jahren an Zukunftstechnologien für den Mobilfunk (6G) mitarbeiten.


RF-E Workshop


The RFE workshop “Build your own RF Amplifier” enables students to gather initial experience in high frequency circuit design, even during the corona winter semester 2020/2021. In this workshop students will go through different design phases of a simple RF amplifier board, such as; selecting a suitable transistor, creating a schematic design, creating a board layout, assembly and finally the measurement. The amplifier boards are manufactured at the IHE and offer the students initial insights into PCB manufacturing and the resulting limitations for the PCB design. The workshop will be offered again in WS21/22.

International Microwave Week


The International Microwave Week with the flagship conferences International Microwave Symposium and Radio Frequency Integrated Circuits Symposium took place in hybrid format. This year we had two papers from IHE, authored by Tsung-Ching Tsai at the RF-IC symposium and by Christian Bohn at IMS. Apart from this, Prof. Ulusoy chaired a workshop and this year´s student paper competition.

RTu2F-4A Linear and Efficient Power Amplifier Supporting Wideband 64-QAM for 5G Applications from 26 to 30GHz in SiGe:C BiCMOS

We2G-3: PAM-4 Driver Amplifier Using Distributed Power Combining

WME: Millimeter-Wave and Terahertz Technologies for multi-Gbps Wireline Interconnects