Antennas

Cobham Sensor Systems

Cobham Defense Electronic Systems provides antennas and integrated antenna subsystems for airborne, shipboard and ground-based electronic warfare, radar, communication, navigation, and identification systems applications.

Details

Spiral Antennas Nurad offers cavity backed spirals with a variety of package and performance options. These Archimedean spirals employ very broadband balun feed networks and are available in right- and left-hand polarizations. Current spiral designs provide frequency coverage in discrete bands from 200 MHz to 40 GHz and diameters from greater than 30 inches to less than 1 inch. Typical antennas operate continuously over bands such as 2 to 18 GHz and 18 to 40 GHz, while maintaining excellent radiation pattern characteristics and low axial ratio. Nurad also offers extended band spirals to meet special customer requirements. Phase and amplitude tracking characteristics can be incorporated and matched sets can be provided for specific applications. The cavity backed spiral antenna's rugged construction and lightweight, moisture sealed design make it well suited for the extreme conditions of airborne platforms, and typical applications include RWR and direction finding systems for both airborne and shipboard systems.
Data Links Atlantic Microwave provides strategic and tactical data link antenna systems for military operations on multiple platforms throughout the world. Supplying antennas for such high-performance applications requires superior design and manufacturing experience coupled with a keen understanding of end user needs. As our customers can attest, Atlantic Microwave has all of these attributes and more. Atlantic has developed a family of data link antennas used in real-time relay of information for reconnaissance and surveillance purposes, such as quick-deploy man portable terminals, multi-function shipboard systems and high-mobility trailer mounted surface terminals. Our Tactical Interoperable Common Data Link (TIGDL) antenna is a highly mobile interoperable Common Data Link (CDL) surface terminal which satisfies the CDL Class I specification for full waveform support of both CDL Command and Return Link data rates.
Flat Plate Antennas Continental Microwave & Tool acquired the assets of the Microwave Products Division of Airtron thereby making CMT one of the world's leading producers of slotted array antennas. Two near field antenna test ranges and environmental test capabilities enable CMT to meet specific customer requirements on a variety of antenna products.
Embedded UAV Antennas Innovative embedded antennas have been developed to provide superior alternatives to conventional blade antennas for UAV datalink, telemetry, command and control applications. Blade antennas increase aerodynamic drag, increase weight, provide less than optimal antenna performance, and are damage prone. Embedded antennas can be integrated within the composite structure of UAVs and other aircraft, and thereby eliminate these disadvantages by providing a lightweight, conformal RF solution with improved link performance and increased component integration. Chelton Microwave Sensor & Antenna Systems currently offers embedded antennas that operate in the UHF, L-Band, S-Band or C-Band frequency ranges. These antennas provide omni-directional coverage in the azimuth plane and are optimized for gain near the horizon. For example, one L-Band version operates over the 1700-1900 MHz frequency range with a VSWR of 2.0:1 maximum, peak gain of +3 dBiL minimum, and occupies only 8 square inches of surface area. Versions of these antennas are available for integration into either horizontal surfaces (wings) and into vertical surfaces (stabilizers).
Tactical & Strategic Communication Antennas Whether you need compact antennas for man-pack tactical communications or larger units for higher data rate mobile or fixed ground terminals, Atlantic has proven to be the industry's most innovative and dependable source.
Radar & Tracking Antennas Atlantic provides a wide range of Radar and Tracking Antennas as well as custom integrated front-end assemblies.The model RAD1601 is a 12 foot diameter parabolic reflector and feed system designed for precision radar tracking systems. Operating in X-Band at 8.5 to 9.6 GHz, the feed system utilizes an eight horn feed and monopulse comparator network to provide outputs for a 3-channel monopulse receiver. The reflector is of aluminum construction. It is manufactured in one section. The reflector includes provision to mount the cassegrain feed at the vertex and provision to interface to the support pedestal. The reflector surface is fabricated from stretch-formed aluminum sheet that accurately conforms to the parabolic contour.
Horn Antennas Nurad horn antennas offer broadband performance in compact, lightweight form. Nurad's current horn antenna portfolio includes products operating from 100 MHz to 96 GHz for various applications with linear, circular, dual linear, and simultaneous circular polarizations. A partial listing is provided in the following table.
Antenna Sub-System Solutions Atlantic Microwave is uniquely positioned to provide the most complete solution for your antenna system requirements.
Intelligence Gathering & Simulators Time and again, Atlantic has successfully demonstrated its ability to supply the most demanding threat simulators as well as reconnaissance, surveillance and calibration antennas for intelligence gathering.
Blade Antennas Nurad designs and manufactures airborne blade antennas for military applications. Many of these antennas are multi-band and several include embedded filters to improve isolation between frequency bands. Some antennas employ a unique feed technique enabling operation over multiple octaves of bandwidth. Phase and amplitude tracking sets are available as required for specific applications. Typical applications include communication, communication jamming, direction finding, navigation, telemetry and identification. Blade antennas are ruggedly constructed and sealed against moisture, with internal DC grounding to protect against lightning. A proven flight history demonstrates reliable performance. .
Broadband Blade Antennas The Nurad blade antenna, Model 11D28500-10, offers ultra-broad bandwidth from 480 MHz to 2400 MHz. This antenna has peak gain of 4dBiL, with a nominal gain of 2.5dBiL, includes built-in lightning protection and has 200w cw power handling capability. Dimensions are 5.25 max base width, 5.55 total height, .59 blade thickness and 1.75 max base width inches and weigh only 9 ozs. Nurad Technologies blade antennas are currently in production and are available immediately for various airborne applications, including tactical and strategic aircraft and UAVs. These antennas have been qualified to withstand the rigors of extreme weather and temperature variables.
Conformal Antennas Nurad offers various conformal antennas for conventional applications that are fully qualified and available, or can be adapted for custom installations and applications. Frequencies span 75 MHz to 40 GHz, and all antennas are constructed using proven design and manufacturing techniques and include integral radomes that are sealed for performance in extreme environmental conditions. Nurad has manufactured more than ten thousand antennas for installation on a variety of missile and aircraft platforms. Typical applications include Proximity Fuse, TACAN, Identification Friend or Foe (IFF), Marker Beacon, Telemetry, Aircraft Landing Carrier Systems (ALCS), Missile Illuminator and Range Safety Flight Termination.
Blade And Stub Antennas Nurad designs and manufactures airborne blade antennas for military applications. Many of these antennas are multi-band and several include embedded filters to improve isolation between frequency bands. Some antennas employ a unique feed technique enabling operation over multiple octaves of bandwidth. Phase and amplitude tracking sets are available as required for specific applications. Typical applications include communication, communication jamming, direction finding, navigation, telemetry and identification.
Special Products Nurad's capability to design and manufacture specialized antennas, antenna systems and related components is evidenced by our wide range of unique designs. Examples of these include log periodic arrays, printed dipoles, omni-directional bicones, off-set reflectors, microstrip arrays, ortho mode transducers and segmented reflectors. Nurad has the expert personnel and state-of-the-art facilities to test and manufacture all types of antennas to meet difficult performance specifications on time and within budget.
Low Profile Antennas

Cobham Sensor Systems