KU LNA BB 050700 B, Breitbandvorverstärker
KU LNA BB 050700 B, Breitbandvorverstärker KU LNA BB 050700 B, Plot

KU LNA BB 050700 B, Broadband Low Noise Amplifier

500 ... 7000 MHz


Monitoring systems     test equipment

- Low ripple
- High bandwidth
- Good input and output matching
- Reverse polarity protection
- Super-small mechanical dimensions

The low noise broadband preamplifier KU LNA BB 050700 B impresses with a very low ripple of typ. +/- 1 dB over the wide frequency range from 500 MHz to 7 GHz. Gain and noise figure are typically 21 dB and 1.6 dB, respectively. Furthermore, the LNA shows a high IP3 and an output power of more than 100 mW. These outstanding technical properties result in a wide range of possible applications.

Available from stock
Frequency range500..7000 MHz
Noise figure @ 18 °Ctyp. 1.6 dB, max. 2 dB @ 7 GHz
Gaintyp. 21 dB, min. 18 dB @ 7 GHz
Gain flatnessmax. +/- 2 dB
Maximum input power16 dBm
Output power (P1dB)typ. 20 dBm
Output IP3typ. 30 dBm, min. 27 dBm
Input return loss (S11)min. 10 dB
Supply voltage+9 ... 14 V DC
Current consumptiontyp. 80 mA
Operating case temp. range-40 ... +65 °C
Input connector / impedanceSMA-female, 50 ohms
Output connector / impedanceSMA-female, 50 ohms
Casemilled aluminium
Dimensions (mm)23 x 24.5 x 9
Weight15 g (typ.)
FeatureRemote power supply via RF output
  • High IP3
  • Reverse polarity protection
  • Solder pin for direct power supply
  • Super Low Noise
  • Remote power supply via output connector
  • Low ripple
  • High bandwidth
  • Good input and output matching
  • Reverse polarity protection
  • Super-small mechanical dimensions
  • Measurement and laboratory equipment
  • Broadband amplifier for spectrum analysis
  • Low noise broadband amplifier for monitoring systems
  • Broadband power amplifier for networkanalysis (sweep oscillators)
  • Amplifier does not contain a coaxial relay!


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.