US Army CECOM, C4IEW Acquisition Center, Ft. Monmouth, New Jersey 07703-5008

58 -- LOW COST ELECTRONIC SCAN ANTENNAS FOR RADAR APPLICATIONS POC Mr. John Borowick, (908) 427-2875. The Department of Defense Technology Panel on Sensors has reconguized that there has been only limited funding available for advancing the development of promising low cost electronic scanning antenna Techniques. Accordingly, a tri-service request for information in this technical aera is being pursued, with technical points of contract identified within each of the services. For the Army, it is the US Army Communications-Electronics Command, Night Vision Electronic Sensors Directorate, Radar-Combat Identification Branch at Fort Monmouth, New Jersey. The address for the Army POC is Mr. John Borowick, US Army CECOM, AMSEL-RD-SR-R, Fort Monmouth, New Jersey 07703, Tel (908) 427-2875. The Navy POC is Dr. J. Rao, Naval Research Lab, Radar Division, Code 5317, Washington, DC 20375. Tel (202) 767-2578. The Air Force is Mr. Todd A. Kastle, W1/AARM Bldg 22, 2690 C Street, Ste. 1, WPAFB, OH 45433-7408. Email Kastleta@aa.wpafb.af.mil. The services are seeking information from large and small companies, universities, and other offerors who can identify techniques that can lead to the low cost production of ground, airborne, and shipborne electronic scanning antennas. The term electronic scanning includes those techniques employing electromechanical, frequency scan, beamswitching, or other methods which offer rapid beam scanning. Offerors need not presntly possess large scale production facilities. Information will be sought regarding the ability of the particular design to satisfy one or more of the service's requirements, along with rational substantiation of cost reduction methodologies or procedures. Innovative ideas whose basic concepts have at least been demonstrated in the past with either limited government or company funding are especially solicited. For planning purposes, the Army's primary interests includes low cost electronic scanning for the Millimeterwave Ground Radar (MGR) tank based radar, with the following requirements. MGR ESA - Frequency 3.5 GHZ, 1 GHzbandwidth min, 2 GHz desirable, MTI/STI application, Dual polarization (vertical and horizontal) on pulse to pulse basis, Simultancous polarization on receive, Monopulse in elevation and azimuth, Az/El beamwidths: 2 deg/2degrees, ScanCoverage Volume: 360 degrees Azimuth coverage by 12 dregrees elevation. A future upgrade to the MGR is the Multi Function Millimeterwave Ground Radar (MFGR). This MFGR would integrate the Army's MGR tank radar having an MTI/STI capability, with those requirments of the Battlefield Combat Identification System (BCIS), and also a top attack protection capability. Offerors are invited to propose rational ideas for the top attack function. The BCIS top level antenna requirements are as follows: BCIS Antenna - Frequency 38.32 GHz, Gain 33 dB, Polarization RHCP, Beamwidth Az 1.3 degrees/El 7 degrees, Peak sidelobes Az -24dB/el -13 dB. The present top level Firefinder antenna parameters are provided below. Offerors are invited to propose cost effective designs for an advanced Firefinder, AN/TPQ-37 P31, which would have lighter weight, lower sidelobes, and increased gain. Present Firefinder Antenna - Frequency S band, Scan range Az +/-45 deg/El +/-1.65 deg, Gain 35 dB, Sidelobes 2.5 dB, Beamwith El 1.8 deg/AZ 2.5 deg, Az/El monopulse, Transmitter power 36 kW peak/1.44 kW Ave, Weight 2900 lb antenna/1800 lb transmitter. The Navy interests are (1) Multifunction aperture (2) Low Cost phased arrays and (3) Millimeter wave antennas. The objective of the first item is to reduce the number of antennas on a ship by using a single aperture for multiple functions. The functions may include radar, communications and electronic warfare. As the title indicates, the goal of the second item is to reduce the cost of phased arrays. The application of low cost phased arrays may include multifunction apertures. Navy interest in millimeter wave antennas are related to millimeter wave radar applications. The millimeter wave applications include airborne intercept, counter stealth, noncooperative target recognition and ship self defense. The Air Force primary interests for planning purposes are Low Cost Multifunction (ESM, Radar and EW) ESAs for applications for retrofit and for future aircraft (fighter and surveilance applications including UAVs). Other areas of interest include low cost receiver channels, direct digital synthesis (DDS), and SAR/MTI. The Frequencics of interest are .05-18, 35, 94 GHz. Do not provide any contractual costing information with your presentations. This notice is for information and planning purposes only; it does not consitute a solicitation for bid or proposal, and it is not to be construe as a commitment by any of the services. These technical interchange sessions will be held at the US Army CECOM NVESD facility at Building 2705, Fort Monmouth, NJ. Offerors will have the opportunity to present their ideas one-on-one with the government so as to protect what they may consider proprietary techniques. Requests for scheduling interchange sessions should be addressed to John Borowick at (908) 427-2875, or Email at jborowic@nvl.army.mil. The essentials of your offerings will be presented in periods not longer than one hour, with the tri-service representatives present. The workshops will be held from 4 through 8 December 1995. (0313)

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