SHF Communication Technologies AG Wilhelm-von-Siemens-Str. 23 Aufgang D 12277 Berlin Marienfelde Germany Phone ++49 / 772 05 10 Fax ++49 / 753 10 78 E-Mail: sales@shf.biz Web: http://www.shf.biz Datasheet SHF 816 Power Amplifier
Specifications SHF 816 Parameter Symbol Unit Min Typ Max Conditions High frequency 3 db point f HIGH GHz 27 Low frequency 3 db point f LOW GHz 17 Gain G db 31 32 inverting Gain control voltage U gc V 0-5 reduces gain by more than 3 db 1 Output power at 1 db compression Output power at 2 db compression Output power at 3 db compression P 01dB P 02dB P 03dB dbm (V) dbm (V) dbm (V) 29 (17.8) (20).5 (21) (20).5 (21) 31 (22) >17.5GHz <27GHz >17.5GHz <27GHz >17.5GHz <27GHz Input return loss S 11 db -10 >17GHz <27GHz Output return loss S 22 db -10 >17GHz <27GHz Maximum input power dbm 4 10 in operation without power supply Supply voltage U s V 9 10 1.1 A, reverse voltage protected Power consumption W 9.9 using 9 V supply voltage Input connector K (2.9mm) female 2 Output connector K (2.9mm) male 2 Dimensions (LxWxH) mm 51x35x13.5 excluding connectors 1 large signal gain see page 4 2 other connectors available on request The SHF 816 has a three stage amplifier design using special monolithic microwave integrated circuits (MMICs) inside special carriers to achieve low noise performance. The custom made MMIC carrier is optimized for good input return loss between its interior and the 50 Ohm outside hybrid technology. The computer optimized broadband circuit is specially tuned for maximum output power and gain. A voltage regulator IC makes the amplifier insensitive to reverse voltage and line ripple. SHF reserves the right to change specifications and design without notice SHF 816 Rev. 1.2 22/APR/2004 Page 2/6
S-Parameters, group delay and phase response at maximum gain Aperture of group delay measurement: 81 MHz SHF reserves the right to change specifications and design without notice SHF 816 Rev. 1.2 22/APR/2004 Page 3/6
Saturation power Top (red): 3 db compression; Middle (green): 2 db compression; Bottom (blue): 1 db compression Gain reduction function S 21 [ db ] 34 32 28 26 24 S21 (db) - Ugc=0V S21 (db) - Ugc=-2V S21 (db) - Ugc=-3V 22 S21 (db) - Ugc=-4V S21 (db) - Ugc=-5V 20 16 18 20 22 24 26 28 Frequency [ GHz ] S 21 measured at different gain control voltages. Power in = -2dBm Ugc=0V Ugc=-4V Ugc=-3V Ugc=-5V 32 28 26 24 22 Pout [ dbm ] 20 18 16-10 -9-8 -7-6 -5-4 -3-2 -1 Pin [ dbm ] Output power vs. input power at different gain control voltages. Measured at 20GHz SHF reserves the right to change specifications and design without notice SHF 816 Rev. 1.2 22/APR/2004 Page 4/6
Available Options 01: DC return on input 02: Built-in bias-t on input 03: DC return on output 04: Built-in bias-t on output The following options cannot be combined: 01 and 02 03 and 04 02 and 04 Side view Top view Output Bias-T (Optional) 42 44 47,4 7,15 10,6 16,5 4,9 Bottom view Input Bias-T (Optional) Output Input Power supply Gain Control 4,8 32 35 9,5 13,5 42 3 M2,5x5 (4x) 48 51 31 SHF reserves the right to change specifications and design without notice SHF 816 Rev. 1.2 22/APR/2004 Page 5/6
User Instructions ATTENTION! Electrostatic sensitive GaAs FET amplifier 1. To prevent damage through static charge build up, cables should be always discharged before connecting them to the amplifier! 2. Attach a 50 Ohm output load before supplying DC power to the amplifier! 3. The supply voltage can be taken from any regular 9 10V, 1.1A DC power supply and can be connected to the supply feed-through filter via an ON / OFF switch. 4. The minimum supply voltage is 9V. A higher one increases the power dissipation of the internal voltage stabilizer. 5. Using a 3 db or 6 db input attenuator will result in a 6 db or 12 db increase of the input return loss. For minimal degradation these attenuators should have a bandwidth specification of >40 GHz (K/ 2.9mm attenuators)! 6. An input signal of about 0.5 V pp equivalent to -2 dbm will produce the full swing output of 20 V pp 7. We recommend that the amplifier be used in conjunction with a 50 Ohm load. Use of a reflective load for extended periods should be avoided. 8. The input voltage should never be greater than 1 V pp equivalent to 4 dbm input power. The input voltage without DC power supplied to the amplifier should never be greater than 2 V pp equivalent to 10 dbm input power. SHF reserves the right to change specifications and design without notice SHF 816 Rev. 1.2 22/APR/2004 Page 6/6