Overview

The Mi-Wave 267 series is machined to close tolerances so that its pattern stays consistent and repeatable across the operating band. Radiation is uniform through 360 degrees in azimuth with an elevation half-power beamwidth of about 45 degrees; gain is typically 3 to 4 dB and return loss is at least 14 dB on the wideband coaxial models, 17 dB on the X-band and Ku-band coaxial models and 20 dB on the waveguide models. The family includes wideband coaxial versions (5 to 70 GHz) and waveguide versions for the X, Ku, K, Ka, Q, U, V, E, W and D bands, with SMA female, K female, 2.4 mm female and standard UG flange interfaces. Before ordering, decide whether you want a single-band waveguide unit or a wideband coaxial one, and check the input power limit, which drops sharply at the top of the range. Mi-Wave's own plant in St. Petersburg, Florida houses its machine shop, laboratories and anechoic chamber, and custom frequency ranges, mounts and mechanical designs are available. Typical uses are surveillance networks, telemetry systems, RF measurement probes and millimeter-wave automotive radar.

Key specifications

Operating frequency (series)	5 GHz to 170 GHz (by model; the manufacturer model table runs from 5 GHz on the 267-5/40/KF up to 170 GHz on the 267D/387)
Azimuth beamwidth	360 degrees (omnidirectional)
Elevation beamwidth	45 degrees (typical)
Gain	3 to 4 dB (typical)
Return loss (waveguide models)	20 dB minimum, including the D-band 267D/387
Return loss (coaxial models)	14 to 17 dB minimum
Polarization	Vertical linear
Input power (V-band 267V/385)	3 W maximum
Input power (W-band 267W/387)	1 W maximum
Input power (D-band 267D/387)	0.01 W maximum
Interface (waveguide models)	WR-6 / WR-10 / WR-12 / WR-15 / WR-19 / WR-22 / WR-28 / WR-42 and other standard UG flanges
Interface (coaxial models)	SMA female, K female, 2.4 mm female, 1.85 mm female

Features

360-degree horizontal coverage

Omnidirectional in azimuth, so every horizontal direction is covered at once without mechanical scanning or re-pointing, which simplifies the system.

Very wide band selection

Models run from X-band (8.2 GHz) to D-band (170 GHz), plus 5 to 70 GHz wideband coaxial units, so one family covers several bands with an exact fit per application.

Low return loss, stable gain

Waveguide models hold at least 20 dB return loss and 3 to 4 dB typical gain across the band, with a repeatable pattern for measurement and integration.

Flexible interfaces

Waveguide (WR-6 to WR-42) and coaxial (SMA, K, 2.4 mm, 1.85 mm) interfaces connect straight into existing millimeter-wave test setups and systems.

Precision machined in the USA

Mi-Wave's own plant in St. Petersburg, Florida holds its machine shop, laboratories and anechoic chamber; the 267 series is precision machined there for consistent performance from batch to batch.

Custom configurations

Frequency range, interface, mounting and mechanical design can be tailored for special measurements, OEM integration or harsh environments.

Typical applications

5G R&D

Millimeter-wave OTA radiated testing

In V-band (50 to 75 GHz) or E-band (60 to 90 GHz) 5G NR over-the-air (OTA) testing, engineers place a 267 series antenna in the anechoic chamber as the reference. Its uniform 360-degree azimuth coverage lets them measure EIRP and EIS of the device under test (DUT) in every direction without rotating the antenna, cutting validation time.

Spectrum monitoring

Spectrum monitoring and interference detection

At airports, base station sites and research campuses, RF engineers deploy the 267 series as a wideband (up to 5 to 70 GHz) omnidirectional sensor that scans the environment for spurious signals, co-channel interference and unauthorized transmitters. Because it receives from all directions at once, the monitoring system needs no scanning mechanism, which lowers cost and complexity.

267 series omnidirectional antenna validating a UAV data link and telemetry system

UAV telemetry

UAV data link and telemetry system validation

During ground testing and pre-flight integration of unmanned aircraft, technicians use a 267 series antenna at the ground station to verify the millimeter-wave telemetry link through every flight attitude. Its stable omnidirectional pattern and low VSWR keep the link and the measurements repeatable while the aircraft's orientation keeps changing.

Options and configuration

Tick the model that matches your band and interface; we compile the list and carry it into the quote form.

Wideband models (coaxial)

267-5/40/KF, 5 to 40 GHz, K femaleWideband 5 to 40 GHz, K female coaxial connector, 3 to 4 dB gain, 14 dB return loss, 5 W maximum input 267-5/50/2.4mmF, 5 to 50 GHz, 2.4 mm femaleWideband 5 to 50 GHz, 2.4 mm female coaxial connector, 3 to 4 dB gain, 14 dB return loss, 5 W maximum input 267-5/70/1.85mmF, 5 to 70 GHz, 1.85 mm femaleWideband 5 to 70 GHz, 1.85 mm female coaxial connector, 3 to 4 dB gain, 14 dB return loss, 5 W maximum input

Standard characteristics (all models)

360-degree azimuth coverageUniform omnidirectional coverage in the horizontal plane, suited to point-to-multipoint and broadcast use

45-degree elevation beamwidthElevation half-power beamwidth of 45 degrees (typical)

Polarization: vertical linearAll standard models are vertically linearly polarized

Precision machined constructionDesigned, machined and tested at Mi-Wave's St. Petersburg, Florida plant for consistent, repeatable RF performance

0 options selected Standard configuration only

Add configuration to quote request