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Jessup, MD 20794

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Antenna Animation Antenna Design & Manufacturing Corporation
1-301-498-1140
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SPECIAL ANTENNAS

1.      CONICAL SPIRAL ANTENNA, MODEL CSA –630/A

 

Model CSA-630/A is a broadband conical spiral antenna designed specially for use at John F. Kennedy Space Center, NASA in Florida.

 

SPECIFICATIONS

 

                        TYPE OF ANTENNA:  4-ARM SPIRAL

 

                        ELECTRICAL

 

                        Frequency:                  60 to 300 MHz

                        Gain:                            > 0 dBi from vertical axis to +/- 60 deg

                                                            >-10 dBi from 60 to 80 deg

                        Gain Flatness:                       +/- 2 dB at any azimuth angle and within any  

                                                            elevation angle < 80 degrees from vertical in the

                                                            frequency range of 60 to 300 MHz

            Polarization:                  LHC (standard) or RHC (specify)

            SWR:                           2:1

            Impedance:                  50 Ohms nominal

            Pattern:             Hemispherical in elevation plane; Omni-directional

                                                in azimuth

            Power:                         1 Watt minimum over the frequency range with

                                                Optional octave band hybrids up to 200 Watts

            RF Connector:                   BNC male

 

            MECHANICAL

 

            Height:                          96”

            Base Diameter:            84”

            Weight:             < 50 lbs.

            Mounting:                    Mounts on a 2” OD pipe

            Finish:                           White

 

            ENVIRONMENT

 

            Installation:                   Out door desert & maritime environment

            Wind Loading:            100 MPH winds

            Temperature:                -28 to +65 degrees centigrade

            Relative Humidity:            10 to 95%

 

 

 

2.      PLANAR SPIRAL ANTENNA, MODEL PSA-510/A

 

Model PSA-510/A is a planar cavity backed spiral antenna designed for the frequency range from 500 MHz to 1 GHz.  The antenna is used in DF systems, surveillance, electronic warfare, flush mounted airborne applications and also as a broadband feed for reflector type antennas.  The antenna is right hand (standard) or left hand (specify) circularly polarized and produces unidirectional radiation pattern at all frequencies with front to back ratio of minimum 10 dB.  The antenna has a nominal gain of 3 dBic +/-2 dB with an axial ratio of about 1.5 dB on the axis.  The antenna has a SWR of 2.5:1 over the frequency range and can handle up to 10 Watts of CW power.

 

The antenna is constructed of printed circuit board and is housed in an aluminum cavity.  The antenna is protected from environment by a fiber glass cover.

 

SPECIFICATIONS

 

ELECTRICAL

 

Frequency:                                           500 to 1000 MHz

Polarization:                                          RHCP (standard) or LHCP (specify)

SWR:                                                   2.5:1

Beamwidth:                                          Varies from approximately 110 degrees at 500 MHz                                                         to 75 degrees at 1 GHz

Power Gain:                                         See table

Axial ratio:                                            Typically 1 dB

Power:                                                 Up to 10 Watts

RF Connector:                                      TNC female

 

MECHANICAL

 

Diameter:                                              10”

Height/Deep:                                        5.5”

Weight:                                     5 lbs.

Finish:                                                   White

Environmental:                          MIL-STD-810C

 

3.      PLANAR SPIRAL ANTENNAS, MODEL PSA-12/A, PSA-218/A

 

Model PSA-12/A and PSA-218/A are similar to Model PSA-510/A except for the frequency range and the size.

 

SPECIFICATIONS                            PSA-12/A                            PSA-218/A

 

Frequency:                                           1 to 2 GHz                             2 to 18 GHz

Diameter:                                              4.75”                                        2.50”

Height/Deep:                                        4.00”                                        2.00”

Weight:                                     <l lbs.                                       <6 oz.

Finish:                                                   White                                       White

 

4.      FLUSH MOUNTED AIRBORNE ANTENNA, MODEL ADM-C10

 

Model ADM-C10 is an extremely low weight flush mounted, wrap around airborne Microstrip patch antenna array designed to operate over the frequency range of 2.2 to 2.3 GHz with greater than 10 MHz bandwidth from any given operating frequency (customer to provide the center frequency of  operation at the time of order).  The antenna is designed to transmit minimum of 10 Watts of CW power.  The flush mounted, wrap around antenna is linearly polarized (customer to specify polarization, circumferential or axial) and produces omni-directional radiation pattern with +/- 5 dB circularity.  The antenna has a maximum SWR of 2:1.

 

SPECIFICATIONS

 

ELECTRICAL

 

Frequency:                                           2.2 to 2.3 GHz

Bandwidth:                                           >10 MHz

Polarization:                                          Linear

Directivity:                                            Omni-directional radiation pattern

Beamwidth:                                          60 degrees minimum

Omni Coverage:                                 +/-5 dB, in roll plane

(circularity)

Output Impedance:                               50 Ohms

Power:                                                 10 Watts

SWR:                                                   2:1

RF Connector:                                      SMA female

 

MECHANICAL

 

Size:                                                     Specify the diameter

Thickness:                                            0.094” (antenna + protective cover)

Width:                                                 

Weight:                                     <1.5 lbs.

Mounting Curvature:                                Flush mounted and Wrap around

Mounting:                                             Adhesive bond and clearance holes

 

ENVIRONMENTAL

 

Temperature:                                        -40 deg. C to +70 deg. C minimum

Altitude:                                                0 to 70,000 feet

Vibration:                                             5.8 G’s RMS random, 50 to 2000 Hz

 

 

5.      HIGH GAIN HELICAL ANTENNAS FOR TELEMETRY APPLICATIONS

 

Antenna Design and Manufacturing Corporation’s helical beam antennas are designed for ground-air-ground, vehicular and base communications in the frequency range from 800 MHz to 2.4 GHz.  The antenna is right hand circularly polarized  and produces unidirectional radiation pattern at all frequencies, with front to back ratio of minimum 15 dB.  The antennas have a nominal gain of 12 dBic and has a typical  SWR of 2:1 over most of the frequency range.  The antenna is capable of handling 200 Watts of Cw power.

 

The antenna is covered with a radome housing to protect  it from hostile environment and is foam filled to protect it from shock and vibration.

 

ADM Corporation offers four standard helical antennas:

 

·        Model HA-811/A        0.80 - 1.10 GHz

·        Model HA-1216/A      1.20 – 1.60 GHz

·        Model HA-1719/A      1.71 – 1.85 GHz

·        Model HA-2224/A      2.20 – 2.40 GHz

 

SPECIFICATIONS

 

ELECTRICAL

 

Frequency:       See above

SWR:               2:1 maximum

Polarization:     RHC

Power gain:      12 dBic

Beamwidth:      50 +/- 5 degrees

Power:             Up to 200 Watts

RF Connector:      Type “N” female

 

MECHANICAL

 

                              881/A        1216A       1719/A      2224/A

 

Length:                         24.0”                15.0”         12.0”         10.0”  

Diameter @ Top:               4.5”            4.0”            3.5”            2.5”

          @ Base:           12.0”            8.0”            6.0”            6.0”        

Weight:                         10 lbs.                 8.0 lbs.    6.0 lbs.    4.0 lbs.

Weather Protection:  Radome

Finish:                           White

 

OPTIONS

 

·        LHC Polarization

·        Helical Antenna Array of 4 antennas for 6 dB added gain

·        Universal Joint with mast which mounts on any standard tripod with Ό - 20 stud, Model UJ-1 to position the antenna in any elevation angle.

 

 

 

 

 

TYPICAL POWER GAIN FOR HORN ANTENNA

MODEL RHA-13/A

 

FREQUENCY (GHz)                           POWER GAIN (dBi)

 

0.90          9.0

0.95                                                            11.6

1.00                                                            12.5

1.10                                                            13.9

1.20                                                            14.3

1.30                                                            14.5

1.40                                                            15.2

1.50                                                            15.6

1.60                                                            15.8

1.70                                                            15.8

1.80                                                            16.0

1.90                                                            15.7

2.00                                                            15.6

2.20                                                            15.8

2.40                                                            15.8

2.60                                                            18.1

2.80                                                            12.8

3.00                                                            13.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TYPICAL POWER GAIN AND ANTENNA FACTOR

 FOR PLANNAR SPIRAL ANTENNA

MODEL PSA-510/A

 

Frequency (GHz)               Gain (dBi)                A.F. (dB/m)

 

                             0.30                             -10.0                            30.0

                             0.40                                 0.8                           21.5

                             0.50                                 4.4                           20.0

0.60                        6.0                        20.0

                             0.70                                 6.8                           20.5

                             0.80                                6.7                            21.5

                             0.90                                 6.5                           23.0

                 1.00                                 7.2                           23.0

                             1.10                                 7.3                           24.0

                             1.20                                 7.8                           24.0

                             1.30                                 7.0                           25.5

                             1.40                                 4.6                           28.5

                             1.50                                 3.9                           30.0

                             1.60                               -0.7                            35.0    

                      

                                                       

 

 

 

 

           

 

 

 

 

 

                       

 

                        

                       

 

 

                                   

 

 

 

 

 

 

 

6.      HIGH GAIN HORN ANTENNA, MODEL RHA-13/A

 

ADM Corporation has developed this antenna for a major defense contractor.

 

SPECIFICATIONS

 

Frequency:                                          1 to 2.6 GHz (usable from 0.9 to 3 GHz)

Power Gain:                                        12.5 dBi  at 1 GHz;  18.1 dBi at 2.6 GHz

F- B Ratio:                                       15 dB minimum

Power:                                                 500 Watts

SWR:                                                   2.5:1

Impedance:                                          50 ohms nominal

Connector:                                           N female

Size:                                                     26.5” L x 29.5”   W x 12”  H

Weight:                                     15 lbs

Mount:                                                 Tripod (standard) or End mount (option)

Finish:                                                   Iridite

Color:                                                   Gray

 

7.      HORN ANTENNA, MODEL RHA-25/A

 

Frequency:                                          2 to 5 GHz

Power Gain:                                        12 to 17 dBi

F – B Ratio:                                       15 dB minimum

Power:                                                 200 Watts

SWR:                                                   2.5:1.0

Impedance:                                          50 Ohms

Polarization:                                          Linear

Connector:                                           Type “N” female

Size:                                                     5.25” (W) x 8.25” (H) x 8.75” (L)

Weight:                                     2.5 pounds

Mount:                                                 Tripod and End mount

Finish:                                                   Iridite

Color:                                                   Gray or White

 

8.      DOUBLE RIDGED HORN ANTENNA, MODEL DRH-118/A

 

Frequency:                                          1 to 18 GHz

Gain:                                                    6.5 dBi minimum at 1 GHz

Power:                                                 300 Watts

VSWR:                                                2.5:1 maximum

Impedance:                                          50 Ohms

Polarization:                                          Linear

Connector:                                           Type “N” female

Size:                                                     5.6” (W) x 9.5” (H) x 11”” (L)

Weight:                                     <5 lbs.

Mount:                                                 Tripod and End mount

Finish:                                                   Iridite

Color:                                                   White or Gray (option)

Environment:                                        Weather proofed for extended out door use

 

9.      DUAL POLARIZED HORN ANTENNA, MODEL DPH-118/A

 

Frequency:                                          1 to 18 GHz

Gain:                                                    7 dBi average

Power:                                                 200 Watts

VSWR:                                                2.5 average

Impedance:                                          50 Ohms

Polarization:                                          Dual Linear, Simultaneous vertical and

                                                            Horizontal

Connector:                                           Type “N” or SMA female

Size:                                                     6.25” (W) x 6.25” (H) x 8” (L)

                                                            5.60” (W) x 5.60” (H) x 11” (L)

Weight:                                     <5 lbs.

Mount:                                                 Tripod or End mount

Color:                                                   White or Gray (option) on iridite finish

 

10.  HIGH GAIN DIRECTIONAL YAGI ANTENNAS

 

Antenna Design has designed High Gain Directional Yagi for point to point or point to multipoint applications where high gain and low visibility are required.

 

The antenna is protected from harsh weather environments by an optical radome enclosure.

 

SPECIFICATIONS

 

Frequency:                                          800 – 2500 MHz

Band width:                                       100 MHz (customer to provide the                                                                                frequency range)

VSWR:                                                2.0 : 1.0 maximum

Gain:                                                    15 dBi: 17.5 dBi for array

Power:                                                 Up to 200 watts

Side Lobes:                                      12-15 dB down

 

11.  VHF/UHF BROADBAND DIRECTIONAL ANTENNA

 

ADM Corporation has develop a NEW BROADBAND DIRECTIONAL ANTENNA for the VHF and UHF band for transmit and receive purposes and for communications and other applications.

 

The present version consists of a  dielectric-clad slot antenna for 120 MHz and 20% bandwidth at SWR of 2:1.  The antenna measures 6” long x 3” high x 2” deep of aluminum construction.

 

This antenna can be used without the dielectric in the 580 to 2500 MHz frequency range.  Other frequencies can be accommodated.

 

For example, the antenna can be designed as a hand held small antenna for communications with satellites.

 

SPECIFICATIONS

 

            Frequency:                                          120 MHz

            Gain:                                                    3.0 – 5.5” dBi (120 MHz to 1 GHz)

            Bandwidth:                                           20% at SWR 2:1

                                                                        30% at SWR 3:1

            3 dB beamwidth:                               Elevation, 130 – 150 degrees

            Impedance:                                          50 Ohms

 

NON-DIELECTRIC MODEL:

 

Frequency:                                          580 – 2500 MHz

 

All other specifications same as above.

 

*CONTACT ADM FOR DETAILS*