◆ production desc-ription

tc-5062a, economy uhf tem cell generates a consistent electromagnetic field for testing small rf devices such as pagers, gps receivers, phones, etc. an external test signal applied through the input port of the tc-5062a 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.

tc-5062afitted with dut rotator

◆ theory of operation 

tc-5062a uhf tem cell cell is made to work beyond the typical tem cell operating frequency range limited by cel 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 parts of the cell, the wave propagation beyond certain frequency is no more propagated by tem mode alone and cr-eates resonance. to eliminate the resonance problem, the half of the cell is  replaced by the wave absorbing material. one commercial implementation is g-tem cell. the size of the g-tem design is too large for typical small device applications due to the type of absorber used. tescom borrowed the concept of 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-5062a 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 ob-ject is in-serted 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
• broadband tem cel up to 3 ghz
• small size, small footprint for desktop application
• high effective shielding
• specifically designed for all types of phones
• able to installl dut rotator jig
• db25 data connector, sma rf connector

◆ applications

• receiver sensitivity testing, transmitter radiated power testing
• emi and ems tests for small uhf devices
• phone, phs, wll, w-lan, pda

◆ specification

• vswr : <1.7, 100mhz ~ 3ghz
• path loss : 22db typical
  measured with dipole antenna from cell center : 21±1db at 900mhz, 24±1.5db at 1.8ghz
• shielding effectiveness : > 80db up to 2ghz, > 70db 2ghz ~ 3ghz
• effective cell height :220 mm
• field strength at test point : 13dbuv/m at 1 uv input
• data connector : db25(p) outside and db25(s) inside
• rf connector : sma(f), n(f)
• dimension : 344(w)×403(d)×675(h) mm
• door size : 176(w)×130(h) mm
• weight total : 19kg
• accessories supplied :
      1901-0002, sma 50＆#8486; termination, 1pc.
      4003-0005, db25(p) to db25(s) cable, 1m, 1pc.
      4006-0002, n(m) to n(m) cable, 2m, 1pc.

◆ ordering information

     tc-5062a, uhf tem cell
     tc-50621a, dut rotator
     f5060-10, dut mounting fixture, maximum 50mm ×125mm
     f5060-20, dut mounting fixture, maximum 90mm ×125mm

   
  f50621a     f5060-10        f5060-20