COJOT Product Spotlight: High Power SBA Antennas for Drone Detection and Jamming

COJOT is extending its range of smart antennas with a high-power version of the popular SBA2458DB and SBA4450B Switched Beam Antennas. The new high-power versions are specified for a power rating of up to 100 W – providing high performance capabilities. Their extremely fast beam switching ability makes these antennas particularly suitable for drone detection & jamming as well as high-power tactical communication applications. The SBA antenna platform can also be adapted to support other frequency bands.

High Power Dual Band SBA (2.4 & 5.8 GHz)

The SBA2458XDB is a high-power dual band Switched Beam Antenna that is particularly suitable for drone detection and jamming applications (WIFI bands).

  • Extremely fast beam switching        
  • Superior gain performance with low side lobe levels
  • Different beam modes available
  • High power rating – 100 W

High Power SBA (4400 – 5000 MHz)

The SBA4450XB is a high power switched beam antenna for UHF IV band that provides superior gain performance with low side lobe levels.

  • LPI/LPD features
  • Different beam modes available
  • Fast beam switching by using RS-485 based communication
  • High power rating – 100 W

For more information, visit www.cojot.com

mWAVE’s Custom Engineering Group – RF and Mechanical Technical Solutions

mWAVE’s engineering staff designs RF and mechanical solutions that overcome a broad array of real-world challenges.  Be it network equipment limitations or to fill a missing link in a client’s research and development project, mWAVE helps by delivering innovation at every level.  

These experienced engineers and scientists are specialists in the 100-MHz to 115-GHz frequencies and are routinely developing customized antenna solutions to meet a client’s specific needs.  Typical custom product designs range from a micro-strip array, panel antenna, horns, feeds (multi-band, conscan and monopulse), helices, sectors, omnidirectional antennas and waveguide arrays.  These highly specialized products range from OEM radio interfaces, ruggedize combat mobile devices, and severe environment antennas to airborne aerials, customized large earth station (satellite) feeds, and complete packaged antenna systems.  mWAVE recently delivered a challenging Dual-Circular Polarized – High Power Conical Horn Array Feed for L, S and C bands to a customer with exceptional results.

mWAVE’s engineering group maintains both a fully equipped indoor and outdoor antenna test ranges that are utilized to verify new antenna designs as well as for production verification and third-party testing for its customers.

mWAVE’s custom engineering team is your partner in finding solutions that meet and surpass your requirements.

For additional information and questions, contact mWAVE.

Cojot Product Spotlight: Lightweight rubber spring antennas

COJOT is promoting its range of compact manpack antennas that feature a rubber spring instead of a traditional shock absorption spring made of steel.  The beneficial characteristic of this alternative type of shock absorption spring is that it makes the antenna up to 30 % lighter and better attenuates oscillation of the antenna.

Wideband UHF Manpack Antenna (420-2700 MHz)

The WD427RQ is a compact manpack antenna that features a rubber spring and comes with high power handling capabilities – making the antenna well suited for portable Counter-RCIED and jamming applications. This antenna is also available with a traditional steel shock absorption spring.

  • Excellent performance over the entire frequency range
  • Small visual signature and low weight

High Gain GSM/3G/LTE Manpack Antenna (790 – 2700 MHz)

The HD827RQ is a high gain manpack that comes with a rubber spring. This light antenna is highly suitable for portable communication and jamming applications. Its centre fed design minimises interference of the human body on the radiation performance of the antenna.

  • Unique electrical design
  • Optimised performance for GSM, 3G and 4G LTE frequency bands
  • Rugged antenna construction with a light rubber shock absorption spring

Lightweight rubber spring solutions are also available for other frequencies

  • 225 – 512 MHz : VHF/UHF Dipole Manpack Antenna WD2245RQ
  • 480 – 2800 MHz: Wideband UHF Manpack Antenna  WD528RQ
  • 800 – 960 MHz, 1710 – 2170 MHz: High Gain Dual-Band Antenna HD820RQ
  • 960 – 1215 MHz: High Gain LINK16 Manpack Antenna HD913RQ

For more information, visit www.cojot.com

Alaris Holdings Results 2019 Financial Year

Alaris Holdings Limited released their financial year end results at an event at the JSE on Thursday, 26 September 2019.

The Group performed exceptionally well for the year ended 30 June 2019, resulting in an impressive profit increase of 25% from R32.9 million to R41.1 million.

Net cash flow from operating activities decreased by 41% from R43.8 million to R25.9 million. The decrease in cash is due to several projects that were completed and invoiced during June, but not yet due for payment in the 2019 financial year.

The Group’s cash position was R41.8 million on 30 June 2019 following the acquisition of mWAVE Industries LLC for a cash consideration of R30.2 million on 1 October 2018.

During this year, Alaris Antennas also managed to conclude projects in the second half of the year, which were delayed during the first half.

The Group’s active global expansion allows for an enhanced product and service offering, based on an extended knowledge spectrum across the subsidiaries. Not only do the Group’s customers benefit from access to highly skilled engineers across the globe, but the four companies are uniquely positioned to serve as trusted advisors in providing customers with technologically advanced and customised solutions.

Sustainable organic growth will remain a strategic priority for the Group, whilst operational activities are continuously aligned as the operations expand.

The companies in the Group are strongly focused on research and development, and hold invaluable, exploitable patented technologies that can be monetised into the future. Cross-selling opportunities and processes are in place to further capitalise on synergies between the subsidiaries.

The design and development of new products based on the uniquely combined skill sets of the four companies will continue to provide competitive features and enable increased performance for end users. All four segments relentlessly strive to provide their customers with a technological edge through constant product innovation and excellent service.

The Group’s global strategy remains one of bold international expansion. Prospects for the period ahead are decidedly positive. By diversifying into different territories and entering new market segments, the management team’s focus is to ensure ongoing profitable organic and acquisitive growth for the Alaris Holdings Group and its stakeholders.

Cojot Product Spotlight: High Power Ultra Wideband ECM Antennas

COJOT is extending its range of ultra-wideband antennas with a high power version of the popular WB425M, WB525M and WB225M vehicle models. The new high power versions are specified for a power rating of up to 400W (RMS) – providing high performance capabilities while keeping a low profile.

Wideband High-Power Antenna (400-6000 MHz)

The  WB425XM is a highly compact vehicle antenna of low profile that is very well suited for a variety of applications in the 400 – 6000 MHz frequency range.

  • Excellent performance over the entire frequency range
  • High power rating, 400 W at 100% duty cycle

Ultra Wideband VHF/UHF/SHF Antenna (200 – 6000 MHz)

The WB225XM is a rugged vehicle antenna with 400W power rating that works from 200MHz onwards.

  • High power rating, 400 W at 100% duty cycle
  • Good horizontal gain starting from 200 MHz onwards
  • Easy to install to different kind of environments
  • Ideal operation over a very wide bandwidth

High-Power UHF / SHF Antenna (500 – 6000 MHz)

WB525XM is low-profle, compact and high power antenna that is well suited for jamming and communication applications  with 500 – 6000 MHz frequency range.

  • Ideal operation in the UHF/SHF bands
  • High performance, 400 W at 100% duty cycle

For more information, visit www.cojot.com

mWAVE Product Spotlight: Dual-Circular Polarised High Power Conical Horn Array Feed for L, S & C Bands

mWAVE Industries, LLC recently completed the design, manufacture and testing of a pair of custom feed assemblies that will be installed in a 20-meter satellite earth station antenna.  mWAVE’s Custom Engineering Group designed this dual-circular polarized cassegrain feed assembly to allow signals across 3 bands to be transmitted and received. This high-power conical array feed operates in L and S bands in addition to a circular polarized corrugated conical horn that operates in the C band. This design features an inherently high gain with a 29dB return loss and 350 Watt power handling maximum across the L and S bands.

Feeds such as this design do not exist as a commercial off-the-shelf product and must be custom engineered to the customer’s specification. mWAVE’s Custom Engineering Group is recognized worldwide for their decades of experience and innovation. They are known for finding economical solutions that are sometimes based on existing designs, and sometimes stretch the science where a completely new theoretical approach may be necessary to meet a customer’s desired specifications.

Additional mWAVE engineering services include antenna design, range testing, analysis and product performance verification

For additional information and questions, contact mWAVE.

Mandela Day 2019 – Fight against hunger – Impacting lives in the Alaris community

Mandela Day 2019 was celebrated at Alaris Antennas with the theme #Action Against Hunger.

Mandela Day is a global call to action that celebrates the idea that each individual has the power to transform the world, the ability to make an impact. This annual international day in honour of Nelson Mandela, is celebrated annually on 18 July, Mandela’s birthday.

At Alaris, we embrace the concept of “changing one life at a time” and this year, we decided to focus on a beneficiary in our local community.

A wise man once said that “a hungry child can’t learn”.  With this in mind, the staff at Alaris came together and made sandwiches to be delivered to a school in our community.  Staff contributed loaves of bread and Alaris Antennas matched the contribution with the necessary spreads.

On Thursday morning, 18 July, a cheerful crowd came together and eagerly got to work spreading the slices of bread.  The staff contribution was outstanding and the morning’s activities resulted into an awesome achievement of about 1100 sandwiches.

 

The school that was chosen as beneficiary, is Olievenhoutbosch Secondary School, based in the township of Olievenhoutbosch in Centurion, on the outskirts of Pretoria, South Africa. As we have been involved with the school before, we knew that the contribution will be welcomed.

Some of the staff members visited the school to deliver the boxes of bread and sandwiches. These  were gratefully received by the children, teachers and headmistress.

A brief background on the school and justification to get involved:

  • This is a “no fee” and public school, based in the Olievenhoutbosch township in Pretoria.
  • The concept of a “no fee” school is that the parents do not pay school fees, since the school is located in a very poor community. They are dependent on grants from the Department of Education and the involvement of the business community.
  • The school has about 1400 learners and the 107 matriculants achieved a 100% matric pass rate last year, including a couple of distinctions.
  • The great concern is that some of the learners go without food for a whole day.
  • The school is managed by a strong and positive principal whose aim is to bring change to the community.

During this initiative, we were once again reminded that one individual can indeed make a difference in another person’s life:  In the words of Madiba: “What counts in life is not the mere fact that we have lived. It is what difference we have made to the lives of others that will determine the significance of the life we lead.” 

COJOT Product Spotlight: Tactical Communication Antennas

COJOT offers a wide variety of tactical communication antennas that are ideally suitable for latest multi-band tactical radios used in e.g. public safety and military ground based and ground-to-air applications. COJOT antennas are renowened for reliability and durability – providing a solid coverage over HF, VHF, UHF and SHF bands while keeping a low profile.

Vehicular C3I Antenna (30 – 512 MHz)

The C30512M provides an effective coverage over the entire 30 – 512 MHz frequency range, making it the ideal choice for latest JTRS and modern SDRs. The radiator of the antenna can be easily detached by rotating it at its spring.

  • Unique electrical design enables optimal performance over the entire 30 – 512 MHz frequency range
  • Covert and rugged mechanical design with a flexible steel whip

Detachable radiator without the need for tools

 

 

 

 

Handheld Adaptive Antenna (30 – 520 MHz)

The TA30512H is a low profile antenna that can be tuned via the RF connector to use the optimum matching circuitry at the required frequency. It thus provides superior gain performance over traditionally matched wideband antennas.

  • Low profile antenna with superior gain performance
  • Fast tuning to a new frequency band allows the antenna to be used in different kind of applications
  • Supports also very wide transmission bandwidths

Control integrated to the TNC-type connector

 

 

Fixed-site Directional Antenna (225 – 512 MHz)

The WR2250B is a wideband corner reflector antenna for mast mounting. Its lightweight mechanical design allows fast and easy deployment as well as space-saving storage. This highly efficient antenna is very well suited for use with modern SDRs.

  • Excellent performance
  • Easy and quick setup
  • Foldable for compact storage
  • Deployable for vertical or horizontal polarization

 

 

Handheld Dual Band Antenna

The WB226H is a wideband dual band antenna optimized for the 225-450 MHz (UHF I) and 760-2600 MHz (LTE) band.

  • Two antennas integrated into the same mechanic:
  1. Low band monopole antenna covers the UHF band from 225 MHz to 450 MHz
  2. Ground plane independent high band antenna covers the band from 760 to 2600 MHz
  • Rugged antenna construction with a flexible gooseneck

For more information on these products and more, visit www.cojot.com

COJOT Product Spotlight: Smart Antennas

COJOT offers two types of Smart Antennas:

  • Switched Beam Antennas (SBAs)
  • Mission Adaptive Antennas

COJOT Switched Beam Antennas (SBAs) combine the outputs of multiple antennas in such a way that fixed beams are steered with a heightened sensitivity and gain to a particular or multiple directions. The SBA communicates with the transceiver to detect the signal strength and chooses from one to several predetermined fixed beams and switches between them as the mobile moves throughout the sector. This way the most appropriate constellation of single or multiple beams that are steered towards the desired signal can be selected.

SBA2458DB Dual Band Switched Beam Antenna for 2.4 and 5.8 GHz​

The SBA2458DB is a dual band switched beam antenna covering the 2.4 and 5.8 GHz frequency bands (WiFi). The antenna beam can be switched by remote control to achieve optimal gain to the desired direction and to avoid interference from unwanted directions. The antenna provides up to 20 sharp beams  to cover the full 360 degree horizontal area. Its extremely fast beam switching ability makes the antenna suitable for complex node network in tactical communication.

Our Switched Beam Antennas are, thanks to their ability for extremely fast beam switching, highly suitable for complex node networks in tactical communications.

COJOT Mission Adaptive Antennas are matched based on controlled band switching, where the frequency band is split into smaller slots and each slot is matched separately. The RF signal is connected through the most optimal matching circuit using RF switches and fast control logic. This switching technology is compatible with frequency hopping. The active matching is controlled by the radio or autonomously by the antenna. The control signal and supply voltage are fed to the antenna through the antenna connector or through a separate data connector.

TA3925M Tunable Vehicular VHF/UHF Mission Adaptive Antenna

The TA3925M is a tunable antenna with a steel whip radiator for the 30 to 512 MHz frequency band with optimized performace for the 30-90 MHz and 225-450 MHz bands. This low profile antenna can be tuned by remote control to use the optimum matching circuitry at the required frequency. The extremely fast tuning ability makes the antenna suitable for most of the conventional modulation types.

Visit www.cojot.com for more information