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Omni Directional Antennas

8.2 to 140 GHz Available

Product Description

Mi-Wave’s Series 267 Omnidirectional Antennas are precision-engineered antennas designed to provide uniform 360-degree azimuth coverage with stable electrical performance across microwave and millimeter-wave frequency ranges. These antennas are ideal for applications where broad area coverage, consistent signal strength, and reliable performance are required without mechanical scanning or antenna repositioning.

Series 267 omnidirectional antennas are fabricated using high-precision manufacturing techniques to ensure repeatable radiation patterns, low VSWR, and stable gain across their operating bands. Unlike directional antennas, omnidirectional antennas radiate energy evenly in the horizontal plane, making them well suited for communications, telemetry, monitoring, and test environments where signal coverage in all directions is critical.

Mi-Wave Series 267 antennas are available with coaxial or rectangular waveguide interfaces, providing flexibility for integration into a wide range of RF, microwave, and millimeter-wave systems.

Note: The omnidirectional antennas shown on this website represent only a portion of Mi-Wave’s manufacturing capabilities. Mi-Wave designs and builds additional omnidirectional antenna configurations beyond those listed, including custom frequency ranges, mechanical designs, mounting options, and environmental configurations. Consult with Mi-Wave to discuss your specific application requirements.

TABLE LIST VIEW

Model	Band Type	Minimum Frequency (GHz)	Maximum Frequency (GHz)	Azimuth Beamwidth (Degrees)	Vertical Beamwidth (Degrees)	Return Loss (dB)	Power Handling (Watts)	Gain (dB) typical	Polarization	RF Ports	LINK
267-5/40/KF	Wideband	5	40	360	45	14	5	0	Vertical	K-Female Connector	View
267-5/50/2.4mmF	Wideband	5	50	360	45	14	5	0	Vertical	2.4mm Female Coax Connector	View
267-5/70/1.85mmF	Wideband	5	70	360	45	14	5	0	Vertical	1.85mm Female Coax Connector	View
267X/SMAF	X-Band	8.2	12.4	360	45	17	5	3 to 4	Vertical	SMA-Female Connector	View
267Ku/SMAF	Ku-Band	12	18	360	45	17	5	3 to 4	Vertical	SMA-Female Connector	View
267K/595	K-Band	18	26.5	360	45	20	5	3 to 4	Vertical	WR-42 Waveguide, UG-595/U Flange	View
267A/599	Ka-Band	26.5	40	360	45	20	5	3 to 4	Vertical	WR-28 Waveguide, UG-599/U Flange	View
267B/383	Q-Band	33	50	360	45	20	5	3 to 4	Vertical	WR-22 Waveguide, UG-383/U Flange	View
267U/383	U-Band	40	60	360	45	20	5	3 to 4	Vertical	WR-19 Waveguide, UG-383/U-M Flange	View
267V/385	V-Band	50	75	360	45	20	3	3 to 4	Vertical	WR-15 Waveguide, UG-385/U Flange	View
267E/387	E-Band	60	90	360	45	20	2	3 to 4	Vertical	WR-12 Waveguide, UG-387/U Flange	View
267W/387	W-Band	75	110	360	45	20	1	3 o 4	Vertical	WR-10 Waveguide, UG-387/U-M Flange	View
267D/387	D-Band	110	170	360	45	20	0.01	3 to 4	Vertical	WR-06 Waveguide, UG-387/U-M Flange	View

GRID VIEW

ADDITIONAL INFORMATION

Omnidirectional antennas are wireless transmit or receive antennas that radiate or intercept radio frequency (RF). They transmit or capture RF signals equally well in all horizontal directions in a flat, two-dimensional plane.

Features

• Low VWSR

• Wide Bandwidths

• 360-degree Azimuth Beamwidths

• Variable Elevation Beamwidths

• 45 Degree Typical

Applications

• Surveillance networks

• Broadcast and Receiving Systems

• RF Probes

• Automotive Radar

Select Your Frequency Band

Click the frequency band you’re interested in for more specific Omnidirectional antenna information.

Why Choose Mi-Wave

Mi-Wave is a trusted manufacturer of RF, microwave, and millimeter-wave antennas and components, supporting commercial, government, and research systems worldwide. Our Series 267 omnidirectional antennas are engineered to deliver reliable 360° coverage, stable electrical characteristics, and long-term performance in demanding high-frequency environments.

High-Frequency Engineering Expertise

With decades of experience in microwave and millimeter-wave antenna design, Mi-Wave develops omnidirectional antennas optimized for uniform azimuth coverage, low VSWR, and predictable radiation behavior across wide operating bandwidths.

Precision Manufacturing and Quality Control

Each Series 267 antenna is manufactured using precision machining and controlled assembly processes to ensure repeatable electrical performance, mechanical stability, and long-term reliability in both laboratory and field-deployed systems.

Broad Frequency and Application Support

Mi-Wave supports omnidirectional antennas across a wide range of microwave and millimeter-wave frequency bands, making them suitable for communications, telemetry, monitoring, and test environments.

Custom Antenna Solutions

In addition to standard offerings, Mi-Wave provides custom omnidirectional antenna designs tailored to specific frequency ranges, polarization requirements, waveguide or coaxial interfaces, mechanical constraints, and environmental conditions. Our sales engineering team works closely with customers to ensure seamless system integration.

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What Omnidirectional Antennas Are and What They Do

Omnidirectional antennas are antennas designed to radiate and receive RF energy uniformly in all directions within the horizontal plane, providing 360-degree azimuth coverage. Unlike directional antennas that focus energy into a narrow beam, omnidirectional antennas distribute energy evenly, enabling consistent coverage around the antenna.

In microwave and millimeter-wave systems, omnidirectional antennas are commonly used when:

Signal coverage is required in multiple directions simultaneously
System orientation may change
Mechanical scanning or antenna steering is impractical

How Omnidirectional Antennas Work

RF energy enters the antenna through a coaxial or waveguide feed interface and is distributed along the antenna structure in a way that produces uniform radiation around the antenna’s axis. The antenna geometry is carefully designed to maintain stable impedance matching and consistent radiation behavior across the operating frequency band.

This design enables:

Uniform azimuth radiation patterns
Low VSWR and efficient power transfer
Stable gain across frequency
Minimal pattern distortion

Frequency Coverage, WR Waveguides, and Supported Bands

Mi-Wave Series 267 omnidirectional antennas support operation across a wide range of microwave and millimeter-wave frequencies, depending on configuration.

Typical frequency coverage includes operation from X-Band through W-Band, with custom options available.

Supported Frequency Bands and WR Waveguide Interfaces

X-Band
WR-90 | 8.2–12.4 GHz
Ku-Band
WR-62 | 12.4–18.0 GHz
K-Band
WR-42 | 18.0–26.5 GHz
Ka-Band
WR-28 | 26.5–40.0 GHz
Q-Band
WR-22 | 33.0–50.0 GHz
V-Band
WR-15 | 50.0–75.0 GHz
W-Band
WR-10 | 75.0–110.0 GHz

Antennas may be supplied with coaxial or waveguide interfaces, depending on frequency band and application requirements.

Why Omnidirectional Antennas Matter

Omnidirectional antennas are critical in systems that require continuous, all-around coverage without complex pointing or tracking mechanisms. Their ability to provide uniform signal distribution simplifies system design and improves reliability in dynamic or distributed environments.

They are especially valuable for:

Monitoring and telemetry systems
Communication links with variable orientation
Test and measurement setups requiring uniform field distribution

Features

360-degree azimuth coverage
Uniform radiation patterns
Low VSWR across the operating band
Stable gain across frequency
Wideband microwave and millimeter-wave performance
High power handling capability
Precision mechanical construction
Coaxial or waveguide interface options
Suitable for laboratory and field environments
Custom configurations available

Applications

RF, microwave, and millimeter-wave communication systems
Telemetry and monitoring systems
Distributed RF sensing applications
Test and measurement environments
System validation and calibration
Research and development platforms
Fixed and mobile RF systems
Situational awareness and coverage applications