KU PA BB 003055-100 A, Leistungsverstärker

KU PA BB 003055-100 A, RF Power Amplifier

30 ... 550 MHz • 100 W

With the KU PA BB 003055-100 A Kuhne electronic puts a broadband power amplifier in the frequency range from 30 MHz to 550 MHz with an typical output power of 100 W on the market. The amplifier can be used for EMC-tests, laboratory measurements and other applications. Because of its high gain the power amplifier can be connected to every common signal generator.
Lead time on request
Frequency range30..550 MHz
Input power for P3dBmin. 3 dBm
Maximum input power+8 dBm
Output power P3dBtyp. 50 dBm, min. 49 dBm
typ. 100 W, min. 80 W (CW)
Output power COFDM (1)typ. 40 dBm, min. 38.4 dBm
typ. 10 W, min. 7 W
Gain (small signal)typ. 49 dB, min. 47 dB
Gain flatness (small signal)typ. +/-1.5 dB (ALC not active)
typ. +/- 1.5 dB (ALC not aktive)
Harmonic rejection min. 18 dB @ 47 dBm
IM3 (2)typ. 25 dBc @ 47 dBm PEP
Efficiency typ. 30 % @ 47 dBm (CW)
Input return loss (S11)min. 10 dB
ON voltage+9 ... 14 V DC
Supply voltage+28 V DC
Quiescent currenttyp. 4.4 A
Current consumption @ P3dBmax. 8.5 A
Operating case temp. range-20 ... +55 °C
VSWR of loadmax. 1.8 : 1
Input connector / impedanceSMA-female / 50 ohms
Output connector / impedanceN-female / 50 Ohms
Casemilled aluminium
Dimensions (mm)192 x 80 x 22
Weight580 g (typ.)
(1)Measured with QAM 64, single carrier, EVM: 2%
(2)Measured 2-tone, frequency spacing: 1 MHz
  • LD-MOSFET-technology
  • Reverse polarity protection
  • Milled aluminium case
  • ON / OFF control with DC voltage
  • Analog transmission systems
  • Measurement, Laboratory equipment
  • EMC-measurement
  • Jammer

Please notice the following:
  • The technical specifications refer to room temperature.
  • The power amplifier doesn’t contain any coaxial relays.
  • The recommended combination of heat sink and fan(s) is only specified for an ambient temperature of 25 °C.
  • Further information about dimensioning of heat sinks is available on our FAQ site.



One of the critical key components of a wireless system is the low-noise amplifier (LNA). The LNA, usually connected close to the antenna, takes the weak radio-frequency (RF) signal from the antenna and amplifies it. The main function of the pre amp is to increase the amplitude of the receiving signal without adding much noise and distortion, in other words, to nearly maintain the signal to noise ratio (SNR)  of the desired RF signal.  The main characteristics of the low noise preamplifier are noise figure (NF), gain, and linearity. KUHNE electronic provides a variety of high quality low-noise and ultra low-noise amplifiers, covering frequency bands L, S, C, X, K, frequency selective and broadband. The functional bandwidth varies from several MHz to about 20 GHz. The website-filter on the product page can be used to refine your search results by frequency range, gain, noise figure and supply voltage. The broad portfolio of KUHNE RF LNAs offers high performance including low noise figure (NF), high gain, high linearity and small power consumption, therewith supports the customers in many different use cases and scenarios, e.g., high and low bandwidth applications, in commercial usage as well as for lab experiments and research. Several application examples are given as follows: the 2 GHz UHF broadband low noise amplifier KU LNA BB 2227 A can be used in the RF front end of a multitude of wireless standards in the ISM band, like UMTS, bluetooth, radar, or 2.4 GHz Wi-Fi, e.g., supporting the communication and video transportation in sports events. Another example is the 5-6 GHZ RF linear preamp KU LNA 5059 A, which is needed in IEEE 802.11a/n/ac Wi-Fi systems operating in the 5.1-5.85 GHz range. Other applications like Automatic Dependent Surveillance Broadcast (ADS-B): KU LNA 1090-2 A, Multichannel Multipoint Distribution Service (MMDS): KU LNA BB 2227 A, Radio astronomy: KU LNA 142 AH, Satellite Communication (Satcom) systems: KU LNA 152 AH and so on can be found in the product descriptions. KUHNE electronic also focuses on the dynamic demands of markets and provides most up-to-date customized solutions. We offer low-noise amplifiers (LNAs) with special features, such as different connector types (SMA, N, Waveguide, and many more), remote power supply via coaxial cable, waterproof cases and so on. Our professional RF products and components enable optimum measure, test, and field application experience.