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Butler Matrices

A Weinschel Product

APITech’s 8401-8 Series is a high performance 8x8 butler matrix, covering several frequency bands from 0.5 to 8GHz. The 8401-8 unit is optimized for the 2.4 to 2.5 GHz and 4.8 to 6.0 GHz frequency bands, while the 8401-8E unit is optimized for the 2.4 to 2.5 GHz and 4.8 to 7.25 GHz frequency bands. The Butler matrix can transfer the signal reciprocally from any of 8 inputs ports to any of other 8 output ports, with high phase accuracy, amplitude balance, low insertion loss, and high port-to-port isolation.

APITech's 8401 series is a high performance 4x4 Butler matrix, covering several frequency bands from 500 MHz up to 8GHz. It can transfer the signal reciprocally from any of 4 input ports to any of other 4 output ports, with high phase accuracy, amplitude balance, very small insertion loss and high port to port isolation. The unit has very stable, repeatable performance.

  • Broad Operating Frequency Range
  • Compact design and construction
  • Custom frequency ranges and configurations are available.
  • WiFi, WiMAX, 4G/5G LTE Testing, Link Simulation
  • MIMO Testing
  • Multipath Simulation and Performance Evaluation
  • Antenna Array Beam-forming
  • Interferometer System Simulation and Testing
Model Fmin (GHz) Fmax (GHz) Insertion Loss (dB) VSWR Output Phase Accuracy RF Input Power (dBm) Typical Isolation (dB)
8401-8 2.0 6.0

13 typ / 16 max

1.5:1 typ, 2.0:1 max  ± 20° max at 4.2 GHz 37 16
8401-8E 2.4 7.25 13.5 typ / 16 max 1.8:1 typ 2.2:1 max ± 20° max at 6.5 GHz 37 20
8401-8-5

0.7

1.7


3.2

1.7


3.2


6

10 typ. /12 max*

11 typ. / 13 max

12 typ. / 16 max*

 

1.4:1 max

1.7:1 max

2.2:1 max

 


± 20° at 5 GHz

 


37

20

17


15

8401-8-6

Preliminary

0.5

2.0

2.0

6.0

10 typ / 13 max

11 typ / 16 max

1.5:1 max, 2.2:1 max ± 20° at 5 GHz 37

20 

17 

 

Model Fmin (GHz) Fmax (GHz) Max I.L. (dB) Max VSWR Output Phase Accuracy (°) Pmax (dBm) Max Isolation (db)
8401 2.4 6.0 8 typ / 10 max 1.6:1 ±10° max at 4.2 GHz 37 18 typ / 15 mx
8401-2 1.7 2.4 7 typ / 8 max 1.5:1 ±10° max at 2.05 GHz 37 20 typ / 20 max
8401-3 1.2 1.4 6.7 typ / 7.5 max 1.3:1 ±10° max at 1.3 GHz 30 30 typ / 25 max
8401-4 0.5 1.0 7 typ / 8 max 1.5:1 ±10° max at 0.75 GHz 37 20 typ / 18 max
8401E 2.4 7.25 8.5 typ / 11 max 2.0:1 ±15° max at 6.5 GHz 37 20 typ / 11 max
8401-5

0.7

1.7

3.2

1.7

3.2

6

7 typ / 11 max

7 typ / 11 max

7.5 typ / 11 max

1.4:1

1.6:1

2:1

 

±8° at 3.25 GHz

 

37

25 typ /20 max

20 typ / 15 max

15 typ / 11 max

8401-6

 

0.7 6.0

8.5 typ / 11 max

1.7:1

2.0:1

±8° at 5 GHz 37

25 typ / 16 max

20 typ / 11 max