Download - 3 HELICAL ANTENNAS AND RF FEEDS - cornestech.co.jp · reflector antennas which have equivalent angular discrimination. CPA series Helical Arrays are comprised of multiple helical

3D HELICAL ANTENNAS

AND RF FEEDS

HELICAL ANTENNAS HRP series Helical Antennas are available for circularly polarized RF systems including: DATA LINK, MOBILE SATELLITE, BASE STATION, FTS (FLIGHT TERMINATION SYSTEM), and SIGNAL MONITORING APPLICATIONS. Helical antennas are available for use in ground-based systems, shipborne platforms and airborne applications. Circularly polarized Helical antennas are ideally suited and regularly deployed for satellite communication, control and telemetry systems. Several models also include the beam tilt, optimized for SATCOM applications. Our innovative helical antennas for Remote Monitoring Station (RMS) applications (see Models HRP-15-RMS and HRP-15-RMSS provide a cost-effective solution to receive RF signals from a desired satellite while discriminating against the adjacent satellite. Carefully balanced elements result in isolation of at least 20dB between two signals from adjacent satellites. HRP-15-RMS effectively replaces two 3.7m L-band reflector antennas which have equivalent angular discrimination. CPA series Helical Arrays are comprised of multiple helical antenna elements for high gain applications. High-gain and high-power CPA antennas are designed for Flight Termination Systems. These antennas interface to high-velocity and high-acceleration pedestals. These arrays are designed to withstand winds in excess of 125 mph. Dissimilar metal junctions are eliminated in high power antennas to improve corrosion resistance. CPA-17/F1 is our high gain and very compact Helical Array Antenna assembly for INMARSAT F1 terminals. This antenna is intended to be used with new compact gimbals for smaller INMARSAT Ship Earth Stations (SES). This greatly reduces the swept volume of the marine antenna system. CPA-17/F1 (old model # 0124-800) is smaller in diameter than conventional standard A/B SES reflector antennas but conforms to INMARSAT F1 SDM gain, sidelobe envelope, G/T, axial ratio and polarization requirements.

HRP – 88

HRP – 12

HRP–15–RMS

CPA – 042/HP

CPA – 17/F1

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Telephone Fax 1-301-937-8888 1-301-937-2796 (MD) 1-877-ARA-SALE 1-781-829-4590 (MA) [email protected]

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HELICAL ANTENNAS 3DAND RF FEEDS

HQA series, Quadrifilar Helical antennas are available for applications requiring an antenna with a broad beam radiation pattern (half power beamwidths in excess of 145 degrees). The compact size and light weight of the HQA series antennas are attractive for GPS applications and INMARSAT standard C terminals. HAS series omnidirectional Helical antennas are available for cost-effective satellite communication links from mobile platforms such as trucks, railroad cars, locomotives, small boats, aircrafts, automobiles and handheld terminals. Our innovative and patented HMA series Helical Mast antennas provide high gain and omnidirectional coverage with an adjustable and variable elevation beam peak range. The elevation beam can be adjusted manually or remotely using a motorized mechanism. A multisection mast-type antenna HMA-LT (Old Model 9760-800) can be easily disassembled for storage in an 8” package for tactical applications. HELICAL FEEDS HCF series circularly polarized feeds are available for use in parabolic reflector antennas. Antenna feeds are available for use in antennas for L-band INMARSAT standard ‘A’ terminals including feeds for antennas aboard ships (Ship Earth Stations) and portable antennas. All feeds are used in our high gain INMARSAT / Standard ‘A’ and ‘B’ Ship Earth Station (SES) reflector antennas. Feeds are also available for GPS (L1 and L2), Ku-band DSS, telemetry and other reflector antennas for SATCOM applications. Special Ku band feeds are designed to retrofit and upgrade old L-band satcom antennas.

HQA – 22R

HAS – L (9520-810)

HMA – LR (9537-800)

HCF – 16/V (9390-801)

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3D HELICAL ANTENNAS

AND RF FEEDS

SPECIFICATIONS: Model

Number Old Model Number

Frequency MHz Pol. Gain

dBic RF

Port Size Power (Watts)

HRP-01 9610-810 100-160 RHCP 6-12.8 N 28’ x 15’ 100 HRP-02 9610-810 100-160 LHCP 6-12.8 N 28’ x 15’ 100 HRP-029 8617-800 236-330 RHCP 12-17 N 10’ length 1000 HRP-232/A HRP-232/A 240-325 RHCP >10 N 45”D x 60”L 200 HRP-035 8617-810 310-400 RHCP 12 - 16 N 7’ length 1000 HRP-06 0234-800 615-654 RHCP 7 N 18”D x 20”L 100 HRP-811/A HRP-811/A 800-1100 Circular 11.5 N 4.5”D x 24”L 200 RP-12 9392-800*** 1200-1350 LHCP 11 N 6.2D” x 8.4”L 100 HRP-14 8613-880 1200-1600 RHCP 16 SMA 2.4”D x 24”L 50 HRP-13 0374-800 1200-1600 RHCP 10 N 2.4”D x 12”L 100 HRP-WLL 0260-801 1460-1490 HRP-WLR 0260-802 1460-1490 HRP-WHL 0260-811 1460-1490 HRP-WHR 0260-812 1460-1490

See separate datasheet for Worldspace Maritime Antennas

HRP-15 8613-800 1525-1661 RHCP 11.5 SMA 2.4”D x 10”L 70 HRP-15HG 8613-870 1525-1661 RHCP 16 SMA 2.4”D x 24”L 70 HRP-16 9429-810 1610-1630 LHCP 1.8 SMA 3.3”D x 11.6”L 50 HRP-20-24 9413-800* 2030-2100 RHCP 7.8 SMA 0.75”D x 30”L 70 HRP-20-45 9413-820* 2030-2100 RHCP 8.1 SMA 0.75”D x 30”L 70 HRP-20 9414-800** 2045-2055 RHCP 3.0 N 2.75”D x 9”L 70 HRP-20A 9416-810 2064-2074 LHCP 3.0 SMA 2.75”D x 12”L 50 HRP-23 9339-800 2310-2360 RHCP 6.5 SMA 3.8”x3.8”x3.8” 50 HRP-22 0342-700 2320-2333 See a separate datasheet HRP-4455/A HRP-4455/A 4300-5900 Circular 12 N 2“D x 4.5”L 100 HRP-77 9653-800*** 7.25-7.75 LHCP 3.5 SMA 0.75”D x 4”H 50 HRP-88 9653-810*** 7.9-8.4 RHCP 3.5 SMA 0.75”D x 4”H 50 * Omni Coverage with beam Tilt ** 8° to 55° coverage *** Airborne applications

HRP-16

HRP-01 HRP-20

HRP-20A

HRP-15

HRP-029

HRP-20-45


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SPECIFICATIONS: CPA series

Model Number

Old Model Number

Frequency MHz Pol. Gain

dBic RF

Port Size Power (Watts)

Weight (Lbs)

CPA-042/HP 9209-800 400-450 LHCP 18 3 1/8 Inch Coax

46”x46”x110” 12000 375

CPA-042 8617-811 400-450 LHCP 13 N-Jack 30”x30”x84” 500 75

CPA-042/HG 9106-800 400-450 LHCP 18 7/8 Coax 62”x62”x73” 2000 140

CPA-095 CPA-811/A 800-1100 Circular 17 N 4.5”D x 24”L 500 20

CPA-16 8357-800 1525-1660.5 Circular 17 N – f 24 long 70 15

CPA-17/F1 0124-800 1525-1660 RHCP 20.6 N – f 27.5”D x 7”H 60 11

CPA-36 9773-800 3.65-6.425 RHCP 14 N – f 8” x 4” x 3.5” 100 2

CPA-46 9645-800* 4.4-5.85 RHCP > 15 N – f 12.5” x 6” x 7.5” 15 2

* Steerable antenna with rotary joint (360° azimuth coverage), airborne application

CPA-042/HG CPA-042/HP

CPA-46 CPA-17/F1

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3D HELICAL ANTENNAS

FOR RMS APPLICATIONS

Model HRP-15-RMSS (old model # 9507-800): Dual Helix RMS Antenna Array. This array is designed for use as a Remote Monitor Station Antenna in order to receive RF signals from AMSC and TMI central satellites. Model HRP-15-RMS (old model # 9370-810): Dual Helix RMS Antenna Array designed for use with the “Solidaridad” I and II satellites. The satellites are located at 109.2° west and 113.0° west respectively, the compensated topocentric angle between the satellites is 4.41° at the installation site in Mexico City, Mexico. SPECIFICATIONS:

HRP-15-RMS

Frequency Range: 1525 – 1559 MHz

Polarization: RHCP

Axial Ratio: 2.0dB, maximum

Gain: Type ‘N’ Female Connector

DC Power Required: 26 VDC, 350 mA

Mounting: Base Flange For Deck Mounting

Weight: 40lbs

Environmental: -20 Deg C to +70 Deg C; Fully Sealed

Control Connector: MS3112E-12-10-P Mating Connector Supplied (MS3116f-12-10S)

Size: Model: HRP-15-RMS (old Model: 9370-810)

Frequency MHz Mode Gain dBic 3 dB BW Axial Ratio

dB Peak / Null

Spacing 1525 ∑ Mode 16.1 1.8 4.45° 1559 ∑ Mode 15.7 1.8 4.35° 1525 ∆ Mode 16 1.2 4.46° 1559 ∆ Mode 15.5 2.0 4.3° 1525 Single 13.5 32° 0.3 1559 Single 13.3 28.4° 1.8

Model: HRP-15-RMSS (old Model: 9507-710)

Frequency MHz Mode Gain dBic 3 dB BW Axial Ratio

dB Peak / Null

Spacing 1525 ∑ Mode 13.13 0.5 5.4° 1559 ∑ Mode 14.65 1.0 5.2° 1525 ∆ Mode 13.03 0.8 5.3° 1559 ∆ Mode 14.65 1.0 5.2° 1525 Single 8.23 5.6° 2.0 max

1559 Single 10.15 / 13.35 Sgl. 5.3° 2.0 max

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HELICAL ANTENNAS WORLDSPACE MARITIME

3D

APPLICATIONS

The HRP-‘W’‘X’‘X’ antennas are used by Worldspace maritime subscribers to receive Worldspace’s digital radio programming. This new satellite service features entertainment, weather, digital messaging and fisheries information for sailors. Seavy Engineering’s omni antennas receive the Worldspace satellite signal and connect to the Worldspace receiver. Two antennas (one LHCP and one RHCP) are used to fully utilize all of the Worldspace radio channels. Separate antenna model numbers are used for Atlantic and Mediterranean maritime areas.

These antennas can be easily installed on small boats, yachts and commercial vessels. Because of their 360-degree omni-directional azimuth pattern and broad elevation coverage, they will receive the Worldspace signal in all but extreme boat motions. SPECIFICATIONS:

Azimuth Pattern Omni-directional

Elevation Pattern Low High

18-39 degrees 31-50 degrees

Frequency Range 1.452 GHz – 1.492 GHz

Polarization LHCP or RHCP

RF Connector N Jack at base

Model Number

Old Model Number

Elevation Coverage Polarization Recommended

Usage Area HRP – WLL 0260-801 Low LHCP Atlantic

HRP – WLR 0260-802 Low RHCP Atlantic

HRP – WHL 0260-811 High LHCP Mediterranean

HRP – WHR 0260-812 High RHCP Mediterranean


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Telephone Fax 1-301-937-8888 1-301-937-2796 (MD) [email protected] 1-877-ARA-SALE 1-781-829-4590 (MA)

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HELICAL ANTENNAS WORLDSPACE MARITIME

APPLICATIONS 3D

SPECIFICATIONS:

Model Number Pol. Elevation

Beam Freq. (GHz)

Peak Gain (dBic)

Axial Ratio (dB)

Omni ∆ (dB)

Return Loss (dB)

HRP – WLL RHCP 27.5° 1.46

1.475 1.49

5.9 5.7 5.6

1.8 2.0 2.2

± 1.1 ± 0.9 ± 0.6

≥ 13.2

HRP – WLR LHCP 27.5° 1.46

1.475 1.49

6.0 6.2 5.7

1.2 1.5 2.0

± 0.5 ± 0.3 ± 0.3

≥ 17.78

HRP – WHL RHCP 42.5° 1.46

1.475 1.49

5.6 5.3 5.0

2.0 1.8 2.0

± 0.7 ± 0.7 ± 0.9

≥ 11.0

HRP – WHR LHCP 42.5° 1.46

1.475 1.49

5.8 5.4 5.8

2.2 2.0 1.6

± 0.7 ± 0.6 ± 0.4

≥ 11.4

HRP – W“x”“x”

HRP-W“x”“x” Return Loss Atlantic LHCP HRP-W“x”“x” Return Loss Atlantic RHCP

HRP-W“x”“x” Return Loss Mediterranean LHCP HRP-W“x”“x” Return Loss Mediterranean RHCP

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HELICAL ANTENNAS INMARSAT STD ‘M’ 3D

ANTENNA

SPECIFICATIONS: CPA-17/F1 (Old Model # 0124-800)

Frequency GHz

Gain dBic

Axial Ratio

1525 20.6 1.7 dB 1542 20.6 1.8 dB 1559 20.6 1.6 dB

1626.5 20.7 1.9 dB 1643.5 20.7 1.8 dB 1660.5 20.8 1.9 dB

Frequency: 1.5250 – 1.5590 GHz Receive 1.6265 – 1.6605 GHz Transmit Polarization: Right-Hand Circular Axial Ratio: 2 dB, maximum System G/T: -4 dB/K Gain: 20.6 dBic, minimum Antenna Noise Temperature: 97K, nominal Sidelobe Envelope: 41-25 log theta dBic (21-57 degrees) -3 dBic (57-180 degrees) Uplink Power: 60 watts, Typical Environment: Marine, inside customer radome Weight: 5.5kg approximate RF Port: Series N Jack connector Size: 27.5” Dia x 7” Thick

CPA-17/F1 VSWR Plot CPA-17/F1 1643 MHz 0 Degrees Rotation

CPA-17/F1 1542 MHz 45 Degrees Rotation CPA-17/F1 1643 MHz 45 Degrees Rotation

CPA-17/F1 1542 MHz 90 Degrees Rotation CPA-17/F1 1643 MHz 90 Degrees Rotation

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3D HELICAL ANTENNAS

AND RF FEEDS

SPECIFICATIONS: Quad Helical Antennas

Model Number

Old Model Number

Frequency MHz Pol. Gain dBic RF

Port Size, Dia x Length

Power (Watts)

HQA-015 HAS-150 149.5 RHCP 3.5 TNC 8 x 39 350

HQA-040 HAS-400 400.5 RHCP 4.0 TNC 4.5 x 13.5 250

HQA-15HG 9386-800 1525-1661 RHCP 4.0 SMA 2.0 x 5.0 50

HQA-16 9438-800 1525-1661 RHCP 2.2 N 3.3 x 11.6 50

HQA-15 HAS-1575 1575 RHCP 5 at 0°, 0 at 90°, -2 at 100° SMA 3 x 1.25 20

HQA-18 0465-800 1750-1855 RHCP 1.5 N-f 4.0 x 10.0 20

HQA-21 0073-800 1985-2200 RHCP 2.0(+20°-90°) SMA 0.6 x 3.5 5W

HQA-21H 0073-800 1985-2200 RHCP 6.0(+20°-90°) SMA 1.0 x 10.0 5W

HQA-22 9806-800 2200-2245 LHCP 2.2 N 1.2 x 2.8 50

HQA-22R 9330-800 2205-2270 RHCP 2.0 SMA 2.38 x 5.4 50

HQA-23 0213-800 2320-2333 LHCP 4.3@54°EL SMA 1.0 x 5.0 50

HQA-24 0335-800 2350 RHCP 3.5 N 3.25 x 7 50

HQA-24 0011-800 2442 ± 50 LHCP 7 SMA 1 x 13.6 50

HQA-25 9429-830 2480-2500 LHCP 2.9 SMA 3.25 x 8.6 50

HQA-37 9539-810 3730-3750 RHCP 2.9 SMA 3.25 x 8.6 50

HQA-51 0069-800* 3700-4200 &5950-6450

RHCP LHCP

> 0 > 0

SMA SMA 1.0x10.0 20

20 HQA-58 0011-850 5800 ± 75 LHCP 8 SMA 0.5 x 6 50 * Two bands in one package

HQA-15HG HQA-16 HQA-51

HQA-22 HQA-22R HQA-21 HQA-24


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SPECIFICATIONS: Omnidirectional Antennas

Model Number

Old Model Number

Frequency Band

Gain dBic

Pattern Type Coverage Size

HAS-L 9520-810 L 4-5 Omni 25° – 70° 1” D x 12” L

HAS-LG4 9652-810 L / GPS 4.2 Omni 20° – 70° 1” D x 7.7” L

HAS-LG6 9650-800 L / GPS 6 Omni 55° – 90° 4.5” D x 5/8” thick

HAS-W* 0260 1.45-1.49GHz See separate datasheet * Series of antennas for Worldspace Maritime applications

HAS-LG4 (9652-810) HAS-L (9520-810) INMARSAT Feeds

SPECIFICATIONS: High Gain Mast-Type Antennas for Mobile SATCOM Applications

Pattern: Omnidirectional Polarization: RHCP Connector: TNC

Model Number

Old Model Number

Frequency Band

Gain dBic

Pattern Type

Elevation Beam

Peaking

Elevation Beam Peak

Range

Size Dia x Length

HMA-LM 9259-800 L ** 9.0 Omni Manual 25° – 70° 0.75” x 35”

HMA-LR 9537-800 L ** 9.0 Omni Motorized 25° – 70° 0.75” x 35”

HMA-LL 9567-800 L ** 8.0 Omni Manual 10° – 30° 0.75” x 35”

HMA-LLL 0245 L ** 6.5 Omni Manual 10° – 30° 0.75” x 38”

HMA-LMT 9872-800 L ** 7.0 Omni Manual 10° – 30° 0.75” x 25.6”

HMA-LMF 9872-810 L ** 6.0 Omni Fixed 15° 0.75” x 15.7”

HMA-LTT 9760-800* L ** 8.0 Omni Manual 10° – 30° 0.75” x 35” * Multi-Section, Disassembled in a small package ** 1525 to 1545 MHz for receive and 1626.5 to 1660.5 MHz for Transmit

HMA-LR (9537-800) HMA-LM (9259-800) HMA-LL (9567-800)


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3D HELICAL ANTENNAS AND RF FEEDS

SPECIFICATIONS: Helical Feeds

Model Number

Old Model Number

Frequency GHz Polarization RF

Port Power (Watts) F/D Focal

Length *HCF-14 8881-800 1.20-1.66 LHCP N 50 0.3 - 0.45 -

HCF-13 8231-890 1.365-1.375 LHCP N 75/400P 0.3 - 0.45 -

HCF-15 9826-800 1.525-1.660 LHCP SMA 50 0.3 - 0.45 -

HCF-15/P 8231-800 1.525-1.660 RHCP SMA 50 0.3 - 0.45 -

HCF-15/V** 8512-801* 1.525-1.660 RHCP SMA 50 0.38 12.5”

HCF-16/V** 9390-801* 1.525-1.660 RHCP SMA 50 0.38 18”

HCF-17/V** 9326-800* 1.525-1.660 RHCP SMA 100 0.39 15.75”

HCF-50 9203-810 4.0-5.5 LHCP N 75 0.3 - 0.45 -

* Vertex Mounted Feeds ** INMARSAT std ‘A’ terminal antenna feeds

HCF-15 HCF-13 HCF-16/V

HCF-15/V HCF-15/P HCF-50

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SPIRAL ANTENNAS 3D

CONICAL LOG SPIRALS

Our CLS series antennas are compact, moderate gain conical log spirals designed to transmit and receive signals over a broadband. CLS antennas are available for left or right circular polarization. The customer should specify the desired polarization when ordering the antenna. These antennas are also capable of receiving signals in both linear and circularly polarized fields. CLS antennas are ideally suited for use in anechoic chambers and enclosures where space is at a premium and isolation is critical.

Standard CLS antennas are intended for relatively permanent installations. The antenna cone is supplied with a mast, which can be mounted on any tripod with a 1/4-20 stud. CLS antennas may be supplied with special mounting holes in the base plate for end mounting.

CLS-2010/A

CLS-110/A SPECIFICATIONS: Conical Log Spirals

CLS-1010/A CLS-2010/A CLS-110/A CLS-5018 Frequency 100 MHz - 1 GHz 200 MHz - 1 GHz 1 - 10 GHz 0.5 - 18.0 GHz Polarization RH Circular ( or LH) RH Circular (or LH) RH Circular (or LH) RH Circular (or LH)Impedance 50 ohms 50 ohms 50 ohms 50 ohms VSWR 2.5 : 1 (max.) 2.5 : 1 (max.) 2 : 1 (Typ.) 2 : 1 (Typ.)

Power 100 W cw, 150 W peak

100 W cw, 150 W peak

50 W cw, 100 W peak 1 W

Connector N female N female N female SMA female Length 40" 32" 5.5” 10" Diameter 26" 13" 4.5" 8" Weight (lbs/kg) 27 / 12.2 17 / 7.7 2 / .9 2.5 / 1.1

CLS-2010/A Typical Antenna Factor and Gain

Frequency (MHz)

Antenna Factor (dB m-1)

Gain (dBic)

200 300 400 500 600 700 800 900

1000

17.2 14.8 16.9 18.7 20.7 22.1 24.1 25.0 25.7

-1.0 5.0 5.4 5.5 5.1 5.0 4.2 4.3 4.5

CLS-2010/A - TYPICAL VSWR

200 300 400 500 600 700 800 900 1000

FREQUENCY (MHz)

VSWR

1.00

1.50

2.00

2.50

3.00

3D SPIRAL ANTENNAS

TRANSMIT-RECEIVE

Typical Antenna Factor and Gain

CLS-110/A CLS-5018

Frequency (GHz)

Antenna Factor

(dB m-1)

Gain (dBi)

Gain (dBic)

0.5 -1.5 1.0 29.23 1.0 -1.0 2.0 35.25 1.0 0.0 3.0 38.27 1.5 -1.1 4.0 38.77 3.5 0.1 5.0 42.71 1.5 -0.9 6.0 43.79 2.0 0.0 7.0 44.63 2.5 0.2 8.0 47.79 0.5 0.1

10.0 48.23 2.0 0.5 12 0.0 14

2.0

16 1.5

Relative Gain (dB)

90° 60° 30° 0° 30° 60° 90°

0

-5

-10

-15

-20

-25

5 GHz

RelativeGain (dB)

90° 60° 30° 0° 30° 60° 90°

0

-5

-10

-15

-20

-25

14 GHz

CLS-5018 - Radiation Patterns

2 > 2

CH2: B -M 1.070 SWR.40 / REF 2.000 SWR

CRSR 1.070 SWR+9.6000GHz

STRT + .5000GHz CRSR +9.6000GHz STOP +18.000GHz

CLS-5018 - Typical VSWR

FREQUENCY (GHz)

1.00

1.50

2.00

2.50

3.00

VSWR

1 2 3 4 5 6 7 8 9 10

CLS-110/A - Typical VSWR


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3DSPIRAL ANTENNAS

CAVITY BACKED SPIRALS

Our CBS series cavity backed spirals are broadband antennas designed for ECM, surveillance, direction finding, telemetry, and flush mounted airborne applications. These spirals can be used as a separate component antenna or as broadband feeds for reflector type dish antennas. All CBS series spiral antennas exhibit an excellent impedance match and radiation pattern control over the broad operating bands in a compact and lightweight package. These spirals are ideally suited for amplitude matching and phase or gain tracking. The unit-to-unit uniformity and frequency independent performance is ideal for airborne monitoring receiving systems. All cavity-backed spirals are available in RHCP or LHCP. These spirals have been designed to operate in a harsh environment and meet the extremes of the MIL-E-5400 Class 2 specification.

CBS-118/A

SPECIFICATIONS: Cavity Backed Spirals

CBS-118/A CBS-218/A CBS-28/A

Frequency 1.0-18.0 GHz 2.0 - 18.0 GHz 2.0 - 8.0 GHz

Beamwidth 3dB 10dB

60° to 90° 130°

>65° nom. (any principle plane) 120°

90° (60° to 110°) 130°

Gain -6dBil (1-2GHz) 0-2dBil (2-18GHz)

-3 to 0 dBil (2-4 GHz) 0 to 1.5 dBil (4-18 GHz) 2 dBil nominal

VSWR (Max) 3.5 : 1 2.5 : 1 2.0 : 1

Power 1 W 1 W 4 W

Axial Ratio <4dB (1-2GHz)

<2 dB (2-12GHz) <3dB (12-18GHz)

3 dB max. @ 45° 4 dB max. @ 60°

Polarization RHCP or LHCP RHCP or LHCP RHCP or LHCP

Connector SMA female SMA female* SMA female

Size 3.5" Dia. x 2.1" L. 2.6" Dia. x 1.6" L. 3.0" Dia. x 2.0" L.

Weight 11 oz. 6 oz. 4 oz. * Off centered and tilted connector configuration available (Model CBS-218-40)


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3D CAVITY BACKED SPIRALS

CSA - 218 – 40 (Old Model # CBS-218-40)

Features:

• Integrated radome for added protection • Ruggedized RWR applications • Designed specifically for high speed aircraft • Meets 90G shock and MIL-SPEC vibration requirements Frequency Range 2 to 18 GHz VSWR 3.0:1 Max. Gain + 1 dBi Nominal Beamwidth (3 dB) 75° Typical Polarization LHCP or RHCP Axial Ratio Boresight ≤ 1.5 dB ± 45° ≤ 2.0 dB Squint ±6° Max.

Connector Precision TNC Female, 40° angle to boresight

Power Handling 1 Watt CW Weight 5.8 oz Max. Finish Semi-gloss black enamel Design Specification 70,000 ft. altitude

CSA - 218 - 40

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SPIRAL ANTENNAS 3D

EQUI-ANGULAR SPIRALS Our equi-angular spiral antennas are designed for impedance and pattern characteristics, which are essentially independent of frequency over the design range. These antennas are ideal for search applications where the polarization of the signal is unknown and/or where freedom from multipath interference effect is desired. The beam is right-circularly polarized on axis off one face, and the left-circularly polarized off the other. The pattern goes to zero in the plane of the spiral. The ESA-220/A and ESA-3/B are suitable for indoor applications and may be used for low power transmitting. The construction is such as to minimize size and weight, and it can be rolled or folded for ultimate portability. The antenna is fed at the center by a miniature coaxial cable. The ESA-330 antenna is available with a lightweight protective radome.

ESA-3/B

ESA-330

SPECIFICATIONS: Equi-Angular Spirals Polarization: RHCP or LHCP Pattern: Bidirectional Impedance:50 ohms

ESA-3/B ESA-220/A ESA-330

Frequency 100 - 1000 MHz 200 - 2000 MHz 300 – 3000 MHz

3 dB Beamwidth 90° 90° 90°

Gain 2 dBic 2 dBic 2 dBic

VSWR (max.) 2.0 : 1 2.0 : 1 2.0 : 1 Power CW Peak

10 W 100 W

10 W 100 W

10 W 100 W

Connector BNC female BNC female SMA female

Size 36" x 45" 20" x 25" 10” x 14”

Weight (lbs/kg) 5 / 2 3 / 1.5 1 / 0.5

Download - 3 HELICAL ANTENNAS AND RF FEEDS - cornestech.co.jp · reflector antennas which have equivalent angular discrimination. CPA series Helical Arrays are comprised of multiple helical

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