TRM Microwave’s BM 44415-R is a 4x4 Butler Matrix, fixed beamformer for 2.4 GHz Wi-Fi and 5 GHz industrial, scientific and medical (ISM) band applications. It can be used with a four-antenna array to produce four beam patterns across both frequency bands simultaneously.


Frequency Range (GHz) Insertion Loss (dB Max.)

Isolation (dB Min.)

VSWR In (Max.) Amplitude Balance (dB Max.)

Phase Balance (Deg. Max.)

RF Shielding (dB Min.)

Output Power (dBm)

2.4 to 2.5

4.9 to 5.9

10 20 1.3:1 ±1.5 ±30 -65 30


  • Finish: Chemical Conversion Coating per MIL-C-5541 Class 3 (optional paint available upon request)
  • Marking: All units supplied with P/N and date code on polyester label (special marking available upon request)
  • Electrical Test: All units tested on a Go/No-go basis (plotted data available upon request). Specifications indicated are subject to change.

TRM Microwave's quality management system has been certified by Intertek Testing Services NA Inc. to the ISO 9001:2008 standard and complies with legacy military standards MIL-I-45208A and MIL-Q-9858.

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