Attachment_2 _Specifications_(RevH).pdf

Attachment 2, Specifications (Rev H)

19 Oct 16

Specifications for Dual Microwave and Millimeter Wave Antennas

The specifications for the dual microwave and millimeter wave antennas that are capable of transmitting a radio frequency signal over the 4-40 GHz frequency range are as follows:

A. ANTENNA FOR A STRAIGHT CYLINDER

Figure 1. Available antenna volume (cross-hatched region) excluding connector for a straight circular cylinder (dimensions in inches).

1. The antenna shall fit inside of a straight circular cylinder that is 2.4 inches (outside diameter) and 2.3 inches (inside diameter) over a length of 1.5 inches, as shown in Figure 1.

2. The antenna shall radiate axially out of the 2.4 inch diameter end of straight cylinder (forward end).

3. A radome shall seal both forward and aft ends of the cylinder.

4. The radome shall be designed to maximize RF transmission through the radome with minimum reflected RF energy back into the antenna.

5. The antenna pattern including the radome will span a cone of roughly 60˚ half angle (120˚ included angle) in both azimuth and elevation planes with antenna gain being greater than -3 dBi.

6. The radome shall be designed to withstand a dynamic pressure equivalent to an axial air velocity of 400 knots at sea level for up to 4 hours.

7. A single coaxial transmission line with a 2.92 mm compatible male connector or a similar custom connector that will be provided to the Contractor no later than the Critical Design Review is required to provide the 4-40 GHz radio frequency feed.

8. The Contractor shall provide a means to rigidly mounting the antenna in place at each end of the cylinder using flanges and/or brackets.

9. The straight cylinder must not exceed 1.5 inches in length excluding the feed connector.

10. Each antenna shall also meet the following specifications:

Power handling: (maximum input power into antenna excluding connector):

100 watts CW, 4 – 18 GHz 50 watts CW, 18 – 40 GHz

Co-Polarization Linear or Circular Cross polarization -10 dB or less, relative to co-polarization Antenna Field of View (Beamwidth) Effective radiative power of 50% (-3 dB) of input power or greater over a field of view of ± 60 degrees in both azimuth and elevation, co-polarization

Input match (VSWR) 2.0 or less Radome, insertion loss 1 dB or less Environment: -20 to +40 degrees Centigrade, operating

0 to 20,000 feet altitude, operating 95% humidity, operating Shock, 15 G peak, half-sine pulses, 11 ms duration Vibration, 0.04 G2/Hz, 10 Hz to 2000 Hz

B. ANTENNA FOR A TAPERED CYLINDER

Figure 2. Available antenna volume (cross-hatched region) excluding connector for a tapered circular cylinder (dimensions in inches).

1. The antenna shall fit inside of a circular cylinder that tapers from 2.1 inches (outside diameter) and 2.0 inches (inside diameter) down to 1.8 inches (outside diameter) and 1.7 inches (inside diameter) over a length of 2 inches, as shown in Figure 2.

2. The antenna shall radiate axially out of the 1.8 inch diameter end (aft end) of the tapered cylinder.

3. A radome shall seal both forward and aft ends of the cylinder.

4. The radome shall be designed to maximize RF transmission through the radome with minimum reflected RF energy back into the antenna.

5. The antenna pattern including the radome shall span a cone of roughly 60˚ half angle (120˚ included angle) in both azimuth and elevation planes with antenna gain being greater than -3dBi.

6. The radome shall be designed to withstand a dynamic pressure equivalent to an axial air velocity of 400 knots at sea level for up to 4 hours.

7. A single coaxial transmission line with a 2.92 mm compatible male connector or a similar custom connector that will be provided to the Contractor no later than the Critical Design Review is required to provide the 4-40 GHz radio frequency feed.

8. The Contractor shall provide a means to rigidly mount the antenna in place at each end of the cylinder using flanges and/or brackets.

9. The antenna for the tapered cylinder must not exceed 2 inches in length excluding the feed connector.

10. Each antenna shall also meet the following specifications:

Power handling (maximum input power into antenna excluding connector):

100 watts CW, 4 – 18 GHz 50 watts CW, 18 – 40 GHz

Co-Polarization Linear or Circular Cross polarization -10 dB or less, relative to co-polarization Antenna Field of View (Beamwidth) Effective radiated power of 50% ( -3 dB) of input power or greater over a field of view of ± 60 degrees in both azimuth and elevation, co-polarization.

Input match (VSWR) 2.0 or less Radome, insertion loss 1 dB or less Environment: -20 to +40 degrees Centigrade, operating

0 to 20,000 feet altitude, operating 95% humidity, operating Shock, 15 G peak, half-sine pulses, 11 ms

C. ACCEPTABLE DEVIATIONS - DUAL ANTENNAS WITH A DIPLEXER

1. Two antennas may be used to cover the 4-40 GHz frequency range if the following is met:

D. STRAIGHT CYLINDER - DUAL ANTENNAS WITH DIPLEXER

1. Both antennas shall be mounted inside of a straight circular cylinder that is 2.4 inches (outside diameter) and 2.3 inches (inside diameter) over a length of 1.5 inches, as shown in Figure 1.

2. A diplexer shall feed the 4-40 GHz frequency input signal into the two antennas.

3. The diplexer shall fit inside the specified 1.5 inch length of the cylinder along with the two antennas.

4. The antennas shall radiate axially out of the 2.4 inch diameter end of straight cylinder (forward end)

5. A radome shall seal both forward and aft ends of the cylinder.

6. The radome shall be designed to maximize RF transmission through the radome with minimum reflected RF energy back into the antennas.

7. The antennas pattern including the radome shall span a cone of roughly 60˚ half angle (120˚ included angle) in both azimuth and elevation planes with antenna gain being greater than -3dBi.

8 The radome shall be designed to withstand a dynamic pressure equivalent to an axial air velocity of 400 knots at sea level for up to 4 hours.

9. A single coaxial transmission line with a 2.92 mm compatible male connector or a similar custom connector that will be provided to the Contractor no later than the Critical Design Review is required to provide the 4-40 GHz radio frequency feed.

10. The Contractor shall provide a means to rigidly mount the antennas in place at each end of the cylinder using flanges and/or brackets.

11. The straight cylinder must not exceed 1.5 inches in length excluding the feed connector.

12. The antennas shall also meet the following specifications:

Power handling (maximum input power into antenna excluding connector)::

100 watts CW, 4 – 18 GHz 50 watts CW, 18 – 40 GHz

Co-Polarization Linear or Circular Cross polarization -10 dB or less, relative to co-polarization Antenna Field of View (Beamwidth) Effective radiated power of 50% ( -3 dB) of input power or greater over a field of view of ± 60 degrees in both azimuth and elevation, co-polarization.

Input match (VSWR) 2.0 or less Radome, insertion loss 1 dB or less Environment: -20 to +40 degrees Centigrade, operating

0 to 20,000 feet altitude, operating 95% humidity, operating Shock, 15 G peak, half-sine pulses, 11 ms

E. TAPERED CYLINDER - DUAL ANTENNAS WITH DIPLEXER

1. The antennas shall fit and mount inside of a circular cylinder that tapers from 2.1 inches (outside diameter) and 2.0 inches (inside diameter) down to 1.8 inches (outside diameter) over a length of 2 inches, as shown in Figure 2.

2. A diplexer shall feed the 4-40 GHz frequency input signal into the two antennas.

3. The diplexer shall fit inside the specified 2 inch length of the cylinder along with the two antennas.

4. The antennas shall radiate axially out of the 1.8 inch diameter end (aft end) of the tapered cylinder.

5. A radome shall seal both forward and aft ends of the cylinder.

6. The radome shall be designed to maximize RF transmission through the radome with minimum reflected RF energy back into the antennas.

7. The antennas pattern including the radome shall span a cone of roughly 60˚ half angle (120˚ included angle) in both azimuth and elevation planes with antenna gain being greater than -3dBi.

8. The radome shall be designed to withstand a dynamic pressure equivalent to an axial air velocity of 400 knots at sea level for up to 4 hours.

9. A single coaxial transmission line with a 2.92 mm compatible male connector or a similar custom connector that will be provided to the Contractor no later than the Critical Design Review is required to provide the 4-40 GHz radio frequency feed.

10. The Contractor shall provide a means to rigidly mount the antennas in place at each end of the cylinder using flanges and/or brackets.

11. The tapered cylinder must not exceed 2 inches in length excluding the feed connector.

12. The antennas shall also meet the following specifications:

Power handling (maximum input power into antenna excluding connector)::

100 watts CW, 4 – 18 GHz 50 watts CW, 18 – 40 GHz

Co-Polarization Linear or Circular Cross polarization -10 dB or less, relative to co-polarization Antenna Field of View (Beamwidth) Effective radiated power of 50% ( -3 dB) of input power or greater over a field of view of ± 60 degrees in both azimuth and elevation, co-polarization

Input match (VSWR) 2.0 or less Radome, insertion loss 1 dB or less Environment: -20 to +40 degrees Centigrade, operating

0 to 20,000 feet altitude, operating 95% humidity, operating Shock, 15 G peak, half-sine pulses, 11 ms