KU PA 2327 LD-20
Power Amplifier
2300 ... 2700 MHz • 18 W
With the KU PA 2327 LD-20 Kuhne electronic puts a S-BAND power amplifier for the frequency range 2300…2700 MHz on the market. This power amplifier is developed for digital applications and can be supplied with a huge voltage range of 11…26 V.
Another highlight to comparable power amplifiers is the TRUE-RMS monitor output for observing the output power. With this feature it is possible to assign the monitor voltage to a defined output power regardless of the type of modulation.
With the integrated ALC (automatic level control) it is possible to adjust the output power to a desired power level. This level is kept constant over the whole frequency range.
Through the use of LDMOS-technique a high efficiency is reached. This results in lower current consumption and longer running time of battery powered systems.
Furthermore an isolator for protecting the power amplifier in case of bad VSWR and a monitor output for controlling the reflected power is implemented, as well as a protective function against polarity reversal and voltage spikes.
Specifications | |
Type | KU PA 2327 LD-20 |
Frequency range | 2300 ... 2700 MHz |
Input power | typ. -3 ... 1.5 dBm |
Output power P1dB | min. 18 W (CW), min. 15 W |
RF output power COFDM | min. 4 W |
Gain (ALC on) | typ. 44 dB |
Gain flatness | typ. +/- 0.5 dB |
Input return loss (S11) | min. 12 dB |
Automatic level control (ALC) | adjustable ALC |
Monitor output | |
Forward detection | Monitor output with |
Reward detection | Monitor output with |
Harmonic rejection | typ. 52 dB, min. 50 dB |
Intermodulation distortions | |
IM3 @ 5 W PEP | min. 43 dBc, |
ON voltage | +5 ... 14 V DC (ON) |
VSWR protection | isolator |
Maximum case temperature | +55 °C |
Supply voltage | +11 ... 26 V DC |
Current consumption | |
Supply voltage = 12 V, | 8.7 A |
Supply voltage = 12 V, | 3.3 A |
Supply voltage = 26 V, | 3.8 A |
Supply voltage = 26 V, | 1.5 A |
Quiescent current | |
Vcc = 12 V | 1.1 A |
Vcc = 26 V | 0.54 A |
Input connector / impedance | SMA-female, 50 ohms |
Output connector / impedance | SMA-female, 50 ohms |
Case | milled aluminium |
Dimensions (mm) | 178 x 59 x 20 |
Weight | typ. 300 g |
Features
- LDMOS technology
- Isolator for protection against high VSWR
- Over voltage protection and reverse polarity protection
- Adjustable ALC (automatic level control)
- True-RMS Detector output for forward detection (DC voltage)
- Monitor output for forward and reverse power detection (DC voltage)
- Logic ON / OFF control (ON at 5 … 14 V)
Applications
- Digital broadcast systems (DVB-T, DVB-S)
- COFDM systems using modulation types QPSK, QAM
- Multichannel Multipoint Distribution Service (MMDS)
- Analog transmission systems
Options

- Amplifier mounted on heat sink with fans
- Amplifier installed into 19" rackmount case
- Amplifier available without isolator
Accessories
- Recommended power supply: S 150 W 24
- Recommended heat sink: SK 200 - 80 1)
- Recommended fan: FAN 80x80 24 V 1)
- Thermal cut-out thermostat TS-65/10
You will find further information for dimensioning heat sinks under the rubric heat sinks.
1) Dimensioned for 25 °C ambient temperature
Important note
- Module does not contain coaxial relay!
- Specifications subject to change without notice -



