COJOT and Alaris Antennas to exhibit at DSEI Japan 15 – 17 March 2023

COJOT, together with sister company, Alaris Antennas will be showcasing their products and expertise at this year’s DSEI Japan.

Taking place 15-17 March 2023, the second edition of DSEI Japan will bring the global defence and security sector together with the entire Japanese and wider Asian defence community to innovate, partner and share knowledge under one roof across three days.

COJOT was founded in 1986 and is located in Espoo, Finland. The company has more than 35 years of experience in the design, development and manufacture of leading-edge VHF/UHF/SHF antenna products, serving defense, military and homeland security markets globally. The Company develops innovative antenna solutions, including omnidirectional, directive, adaptive and steerable beam antennas, to improve connectivity, coverage and competitiveness of radio frequency equipment which is deployed to save lives and protect property.

Alaris Antennas designs, manufactures and sells specialised broadband antennas as well as other related radio frequency products. Its products are used in the communication, frequency spectrum monitoring, electronic warfare and other specialised markets. Clients are located across the globe and are system integrators, frequency spectrum regulators and players in the homeland security space.

View some of COJOT’s products we will showcase this year:




Our High-Band counter-IED Antennas

Selecting the right antenna for the right application and integrating it correctly into a Radio Frequency (RF) system is imperative.

Particularly in Electronic Countermeasure (ECM Antenna) applications, where RF systems are used to prevent the detonation of Radio Controlled Improvised Explosive Devices (RCIED) it is vital to understand the technological characteristics of wideband antennas. As a leading provider of wideband antennas for manpack/handheld and vehicle applications we provide highly reliable and effective omnidirectional antenna solutions.

View some of our high-band counter-RCIED antennas here:






COJOT’s mid-band counter-IED antennas

As a leading provider of antennas for manpack/handheld and vehicle applications we provide highly reliable and effective low- and high-gain omnidirectional antenna solutions for today’s demanding Electronic Warfare (EW) and bomb disposal, e.g. EOD and IEDD, applications.

Our mid-band counter-IED range includes:

WB10DXM | Frequency: 100 – 520 MHz | Power Handling: 200W

WD1450M | Frequency: 130 – 512 MHz | Power Handling: 100W

HD2245M | Frequency: 225 – 512 MHz | Power Handling: 75W

WD1350XQ | Frequency: 118 – 512 MHz | Power Handling: 75W

WD2245RQ | Frequency: 225 – 512 MHz | Power Handling: 60W

COJOT SBAs move with you

Just released – new video on how our SBAs provide superior operability and advanced capabilities for next generation tactical communication applications.


These SBAs have 360 degrees omni coverage which is switchable into wide or sharp beam patterns that can be configured at high speed to efficiently and safely transmit and receive tactical data ensuring improved coverage along with enhanced probability of intercept while exchanging vital information between coalition troops.

Apart from multi-polarised and multi-band options, our SBAs support adapting networks like MESH even while on the move.

For more information, contact us here.

New Counter-UAS Antennas from COJOT

According to research conducted by Teal Group: “It is estimated that military UAS procurement spending will increase from the current worldwide level of almost $10.6 billion annually in 2021 to $13 billion in 2030, totalling $123.1 billion over the next ten years.”

At COJOT, we pride ourselves in delivering superior antennas that is purpose-built for our client’s needs.

Our new Counter-UAS antennas are the latest additions to our growing portfolio:

The DA36B is a high gain antenna that does not require a ground plane for proper operation.

Its ideal performance in the 3000 – 6000 MHz frequency range and compact size make it very well suited for applications like drone or communication jamming.


The DA4348B‘s is a high gain directive loop antenna. It’s ideal performance is in the 430 – 480 MHz frequency range makes it very well suited for Counter-UAS and communication jamming applications.

Gripping stuff: New Magnetic Mount Antennas from COJOT

Where a quick mobile setup and removal is required, our magnetic mount antennas are unmatched.

Our omnidirectional magnetic-mount antennas feature a strong, rugged magnet base for temporary mounting on suitable magnetic surfaces such as a vehicle roof or engine hood. The mag-mount grips the applicable surface very well, with a typical vertical holding force of 280N.

Our new magnetic mount antennas include:


Low profile dual band magnetic mount antenna which supports multiple applications. It is two antennas integrated into the same mechanics and operates ideally in the 130 – 500 MHz and 790 – 2700 MHz frequency bands.


This heavy-duty magnet mount vehicle antenna is perfect for fast and robust temporary installations. It has a rugged and low-profile construction with a built-in low noise amplifier to enable longer cable connection to the receiver.


Particularly suited for communication and jamming applications, this high gain magnet mount omni antenna covers the GSM, 3G and 4G LTE bands. It is highly compact with a unique electrical design.

Our Communication SBAs

COJOT SBAs provide superior operability and advanced capabilities to next generation tactical communication applications. These new steerable beam antennas feature multiple patch elements that when for example used with RF-Devices in a multi domain C4I network – allow to select between different beam modes. Various sectional beam modes, like sharp and wide directional beams, as well as a 360 degree (Omni-mode) can be configured at high speeds to efficiently transmit & receive tactical data, messages and voice communications even in complex operational environments – ensuring improved coverage and enhanced LPI/LPD resistance while exchanging vital information between coalition and joint battle troops.

View our range below:

The Counter-UAS SBAs from COJOT Packs a Punch

COJOT Steerable Beam Antennas (SBAs) are a perfect match to Counter-UAS and Anti-Drone applications. Our latest Dual-Band SBA2456DB (10W) and SBA2456XDB (100W) for the 2.4 to 2.5 and 5 to 6 GHz range feature multiple patch elements that allow for selection between different beam modes, like sharp and Omni. Using the COJOT SBA in a Counter-UAS system allows to transmit and receive with just one antenna, while also gaining Direction Finding (DF) capabilities for a quick and simple amplitude based direction-of-arrival detection.

Check out our new Counter-UAS section that presents various antenna types for the 400 – 6000 MHz frequency range to efficiently detect and defeat drones – suitable for mobile and fixed-site installations.

Removable Dipole Radiator for Vehicle and Mast Applications

Having a product that allows for quick platform change in versatile field situations, is a game-changer. COJOT has developed a multi-use antenna concept which consists of a removable dipole radiator and a separate mast mount adapter – providing an ideal solution for multiple tactical scenarios.

The main advantage of this smart installation solution is that no tools are needed for mounting the antenna.

The removable dipole radiator can be mounted onto a vehicle base or attached to a mast, depending on the need and situation in the field.

Furthermore, if the vehicle is in an underground location where it will be required to have access to a ground-based communication system, the removable dipole radiator in combination with the MASTMO can be easily mounted to a tree or any other suitable location.

Quite often the received signal level can also be increased by elevating the antenna from a vehicle roof, for example with a telescopic mast. In such kind of scenarios, this concept provides a perfect solution for users’ needs.

View the products here:

+ WD30512M-B

+ Mastmo (stand alone accessory)

Figure 1: Removable dipole radiator mounted to a vehicle

Figure 2: Removable dipole radiator attached to a mast

For more information, read our white paper here.

Field-proven magnetic base Antennas with strong holding force

COJOT’s omnidirectional mag-mount antennas are the preferred choice for applications and circumstances where permanent installations are not possible and a rapid deployment and removal is preferred or even required.

We provide a wide range of antennas covering VHF, UHF, GSM, LTE, 5G, WiFi and other bands. Each antenna features a strong, rugged magnet base for temporary mounting on suitable magnetic surfaces such as a vehicle roof or engine hood. The mag-mount grips the car very well, even at high speeds, with a typical vertical holding force of 280N.


Magnetic Mount Accessories

Standard types of vehicle (NATO/US base flange) and portable antennas can be installed with our optionally available mag-mounts, allowing antennas to be used for a quick and easy temporary set-up, including retro-fitting, providing a cost effective solution to overcome restrictions with permanent installations.



This is our range of field-proven magnetic mount antennas and accessories:

WB25512W (25 – 512 MHz)

WB30108W (30-108 MHz)

WB30175W (30-175MHz)

WBCX512W (118-512MHz)

WB460W (420 – 6000 MHz)

WB525W (500-6000MHz)