KU LNA BB 0012650 A

KU LNA BB 0012650 A, Low Noise Broadband Amplifier

10 … 26500 MHz

Analog & digital transmission systems     Measurement and laboratory equipment     Pulse Amplification

- Low noise figure
- High bandwidth
- Good gain flatness
- Reverse polarity protection
- Small mechanical dimensions

The low-noise broadband pre-amplifier KU LNA BB 0012650 A was particularly developed by KUHNE for broadband use from 10 MHz up to 26.5 GHz. Thus, the amplifier is particularly suitable for laboratory operation and the extension of measuring equipment as well as for use in broadband high-frequency transmission systems and broadband pulse amplification.
Lead time on request
Frequency range10..26500 MHz
Noise figure @ 18 °Cmin. 2 dB, max. 7 dB
Gainmin. 25 dB, typ. 30 dB
Maximum input power10 mW
Output power (P1dB)min. 10 dBm
Output IP3min. 20 dBm
Input return loss (S11)min. 8 dB
Output return loss (S22)min. 8 dB
Supply voltagemin. 12 V DC, max. 36 V DC
Current consumptiontyp. 220 mA
Operating case temp. range-40 ... +65 °C
Input connector / impedanceSMA-female, 50 ohms
Output connector / impedanceSMA-female, 50 ohms
Casemilled aluminium
Dimensions (mm)56 x 44 x 12
Weight74 g (typ.)
The KU LNA BB 0012650 A has a bandwidth of 10 MHz to 26.5 GHz and is thus suitable for a variety of applications in the radio-frequency (RF) and microwave range, in particular for the amplification of broadband pulsed signals. Furthermore, the KU LNA BB 0012650 A is characterized by a low noise figure of between 2 dB and 7 dB and a gain of typically 30 dB with a gain flatness of  ±2 dB. The PIN diode-based reverse polarity protection furthermore increases user-friendliness.
  • Low noise figure
  • High bandwidth
  • Good gain flatness
  • Reverse polarity protection
  • Small mechanical dimensions


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.