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Product Description
TC-5063A, Pneumatic UHF TEM Cell generates the Electro-Magnetic
field for testing small RF devices such as wireless pager, GPS Receiver,
Mobile phone, etc. An external test signal applied through the input
port of the TC-5063A generates a consistent and predictable TEM test
field inside the cell.
The radiation field from a device transmitting in the Cell can also
be detected through the port using a test receiver. The unique compact
and economical design is optimized for medium accuracy measurements
beyond the standard TEM Cell frequency range.
Theory of Operation
TC-5063A UHF TEM Cell cell is made
to work beyond the typical TEM Cell operating frequency range limited
by cell resonance. A typical TEM Cell is a 2-port symmetrical device;
RF voltage is applied to one port while the other port is terminated
in 50 ohm while maintaining 50 ohm characteristic impedance along
the cell. Due to expansion and contraction of parts of the cell, the
wave propagation beyond certain frequency is no more propagated by
TEM mode alone and creates resonance. To eliminate the resonance problem,
the half of the cell is replaced by the wave absorbing material.
One commercial implementation is a G-TEM cell. The size of a G-TEM
design is too large for typical small device applications due to the
type of absorber used. We borrowed the concept of the G-TEM,
but changed the termination implementation scheme, and designed a
very compact broad band TEM Cell that can be used on a desktop.
The operation principle of TC-5063A
is essentially the same as TEM Cell. The E-H field inside the test
volume is proportional to the input voltage and inversely proportional
to the cell height. If a radiating object is inserted inside the cell,
the radiated wave toward input port is guided by the transmission
line and picked up at the input with a receiver such as a spectrum
analyzer. With this method, the RFI from a radiating Device can be
measured quantitatively. Since this apparatus is very broadband, it
has many applications in the area of EMI, EMS, receiver sensitivity
test, etc.
Key Features
- Radiation and susceptibility test
- A broadband TEM Cell up to 3GHz
- Small size, Small footprint for desktop applications
- High effective shielding
- Specifically designed for various types of mobile
phones
- Pneumatic Open / Close Construction
- RS-232C Open / Close control
Applications
- Receiver sensitivity testing, Transmitter radiated
power testing
- EMI and EMS tests for small UHF devices
- Mobile Phone, WLAN, PDA, Bluetooth, DAB/DMB
Specifications
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT
PRIOR NOTICE
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