RF Measurement Laboratory

1
RF Measurement Laboratory
Adaptive Wireless Systems Dept. of Electronic
Eng. Cork Institute of Technology aws_at_cit.ie
How shielding works
Introduction Used to provide electromagnetic
shielded environment for RF/Microwave
measurements to be conducted without unwanted
interference.
Why? 1) Exclude unwanted electromagnetic
radiation or signals in order to allow sensitive
electrical measurements to be carried out. 2) To
contain radiating signals which can disrupt
neighbouring equipment.
Reflecting Absorbing radiation
Shielding reduces signals to levels where they no
longer interfere with measurements or cannot be
received.
Software
RF Measurement Equipment

• HP VEE Pro 6
• - Data acquisition
• Designer
• RF circuit simulator
• HSPICE
• -Mixed signal Circuit Simulator
• Ensemble
• - 2.5D EM simulator
• HFSS
• - 3D EM simulator

• Agilent 8714ES Vector Network Analyser
• Agilent 86100 Infinium Wideband Oscilloscope
• Time Domain Reflectometry Module
• Anritsu Spectrum Analyser
• Agilent ESG Signal Generator

Applications

• Characterisation of various IC packages and
  interconnects.
• The design of an ultra wideband transceiver.
• Miniaturisation of transceivers.
• Creation of IBIS models.

• This equipment and software has been successfully
  used to date in a range of RF applications
• To evaluate and model RF passive chip components
  to size 0402 and embedded passives such as spiral
  inductors.
• Characterisation of RF transistors for use in
  amplifiers.
• Simulation and Analysis of RF Filters.

Sample Applications
Comparsion of simulation measurements
MCM-L Design of a miniaturised transceiver
developed using measurement and simulation
Design of a Waveguide Tee junction using HFSS
S11 (Return Loss)
S21 (Insertion Loss)

• S-parameter response of microstrip interconnect
  extracted using
• HFSS Electromagnetic Simulator
• Measurement using VNA