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TEM-Cells

Picture: TekBox TEM-Cell

TekBox TEM-Cell

The Tekbox TEM cells (Transverse Electromagnetic Cell) are so-called "open TEM cells" because they have no side walls, so placing the DUT (Device Under Test) is easily possible. Although interference from the outside can penetrate into the cell, it can easily be identified by measuring the output signal of the cell when the DUT is switched off and can thus be taken into account in the measurement result. A TEM cell consists of a septum, the conductive level in the middle, and stainless steel outer walls connected to ground. The geometry is dimensioned to give an impedance of 50 Ω. The DUT is placed between the bottom wall (bottom) and septum.

Tekbox's TEM cells offer better frequency response than standard TEM cells of the same size. TEM cells suffer from unwanted vibration modes at higher frequencies which limit the usable bandwidth. An outstanding design feature is the implementation of a resistor perpendicular to the propagation direction of the shaft. Higher-order modes and resonances are effectively suppressed.

TekBox, TEM-Cells

TekBox TBTC0

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The XS-version of the Tekbox TEM-cell, recommended for DUTs up to 114 x 42 x 15 mm and frequencies up to 6 GHz.

Specifications TBTC0
dimension (L x B x H) 390 x 100 x 62 mm
Rectangular area under the septum 190 x 70 mm
Septum height 28 mm
Maximum volume of the test piece (L x B x H) 114 x 42 x 15 mm
Interfaces of TEM-Cell N-socket
Nominal cell impedance 50 Ω
Impedance 377 Ω
Maximum RF input power 10 W
Input reflection factor* S11 up to 3,15 GHz: < -15 dB
Forward transmission factor* S21 (Insertion) up to 3 GHz: < 3 dB, up to 6 GHz: <4 dB

2 years warranty.

Datasheet
€ 587.86 incl. 19% VAT
€ 494.- net (VAT Details)
with FREE shipping within the EU!
Shipping costs outside EU

TekBox TBTC1

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The S-version of the Tekbox TEM-cell, recommended for DUTs up to 120 x 120 x 40 mm and frequencies up to 3 GHz.

Specifications TBTC1
dimension (L x B x H) 390 x 200 x 108 mm
Rectangular area under the septum 190 x 130 mm
Septum height 50 mm
Maximum volume of the test piece (L x B x H) 120 x 120 x 40 mm
Interfaces of TEM-Cell N-socket
Nominal cell impedance 50 Ω
Impedance 377 Ω
Maximum RF input power 25 W
Input reflection factor* S11 up to 1,2 GHz: < -20 dB, up to 2,1 GHz: < -17 dB, up to 3 GHz: < -14 dB
Forward transmission factor* S21 (Insertion) up to 1,4 GHz: < 1 dB, up to 2,1 GHz: < 3 dB, up to 3 GHz: < 6 dB

2 years warranty.

Datasheet
€ 784.21 incl. 19% VAT
€ 659.- net (VAT Details)
with FREE shipping within the EU!
Shipping costs outside EU

TekBox TBTC2

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The M-version of the Tekbox TEM-cell, recommended for DUTs up to 180 x 180 x 70 mm and frequencies up to 1.15 GHz.

Specifications TBTC2
dimension (L x B x H) 636 x 300 x 205 mm
Rectangular area under the septum 230 x 280 mm
Septum height 100 mm
Maximum volume of the test piece (L x B x H) 180 x 180 x 70 mm
Interfaces of TEM-Cell N-socket
Nominal cell impedance 50 Ω
Impedance 377 Ω
Maximum RF input power 25 W
Input reflection factor* S11 up to 800 MHz: < -15 dB, up to 1,5 GHz: < -10 dB, up to 3 GHz: < -14 dB
Forward transmission factor* S21 (Insertion) up to 800 MHz: < 1 dB, up to 1,15 GHz: < 3 dB

2 years warranty.

Datasheet
€ 1,046.01 incl. 19% VAT
€ 879.- net (VAT Details)
with FREE shipping within the EU!
Shipping costs outside EU

TekBox TBTC3

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The L-version of the Tekbox TEM-cell, recommended for DUTs up to 300 x 300 x 100 mm and frequencies up to 700 MHz.

Specifications TBTC3
dimension (L x B x H) 1038 x 501 x 305 mm
Rectangular area under the septum 360 x 480 mm
Septum height 150 mm
Maximum volume of the test piece (L x B x H) 300 x 300 x 100 mm
Interfaces of TEM-Cell N-socket
Nominal cell impedance 50 Ω
Impedance 377 Ω
Maximum RF input power 25 W
Input reflection factor* S11 up to 700 MHz < -16 dB
Forward transmission factor* S21 (Insertion) up to 730 MHz: < 3 dB

2 years warranty.

Datasheet
€ 1,307.81 incl. 19% VAT
€ 1,099.- net (VAT Details)
with FREE shipping within the EU!
Shipping costs outside EU

TekBox TBST120/60/60/2

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Tekbox TBST-120/60/60/2 EMC shielding tent is the ideal complement to your EMC pre-compliance test with Tekbox TEM-cells.

Specifications:

  • Outer dimensions: 120 cm x 60 cm x 60 cm
  • Opening dimensions: 85 cm x 35 cm
  • Attenuation: >58 dB in the range DC to 1.5 GHz
  • Frame: 20 mm x 20mm extruded aluminium profiles
  • Shielding: 2 layers of conductive fabrics
  • Seal: conductive Velcro tape
  • Suspension: Velcro stripes
  • Weight: 10.8 kg

The setup requires a Phillips screwdriver, a 2 mm Allen key and some time (>= 1 hour).

Delivery including filter panel with 1 x 240V/10A AC filter (IEC socket), 2 x 240V/10A DC filter + cables with female banana couplers, 3 x N- female feed through connector, 1 x BNC-female feed through connector

2 years warranty.

€ 2,603.72 incl. 19% VAT
€ 2,188.- net (VAT Details)
with FREE shipping within the EU!
Shipping costs outside EU