KU LNA BB 2240 A
KU LNA BB 2240 A KU LNA BB 2240 A Blockschaltbild KU LNA BB 2240 A Diagramm

KU LNA BB 2240 A, Low Noise Broadband Preamplifier

225 ... 400 MHz
Available from stock
Frequency range225..400 MHz
Noise figure @ 18 °Ctyp. 1.0 dB, max. 1.2 dB NF
Gainmin. 20 dB
Gain flatnessmax. +/- 2.5 dB
Maximum input power100 mW
Output power (P1dB)typ. 630 mW (+28 dBm)
Output power (Psat)min. 1000 mW (+30 dBm)
Output IP3typ. 44 dBm
Input return loss (S11)typ. 15 dB, min. 11 dB
Output return loss (S22)typ. 15 dB, min. 11 dB
Supply voltage+12 ... 15 V DC
Current consumptiontyp. 400 mA
Operating case temp. range-20 ... +55 °C
Input connector / impedanceSMA-female, 50 ohms
Output connector / impedanceSMA-female, 50 ohms
Casemilled aluminium
Dimensions (mm)78 x 41 x 22
Weight100 g (typ.)
The high linear preamplifier KU LNA BB2240 A is designed for the UHF communications band. It features best large signal performance and a low noise figure. Internally it uses 3dB hybrids for input and output coupling. This leads to good input return loss, output return loss and high third order intercept point (IP3). The preamplifier contains a bias-T for remote power supply via coaxial cable and a solder pin for direct power supply.
  • Low noise figure
  • Large bandwidth
  • High IP3 and high output power
  • Very good input return loss (S11)
  • Static protection (ESD) at preamplifier input
  • Overvoltage protection and reverse polarity protection
  • Remote power supply via output connector
  • Solder pin for direct power supply
  • Milled aluminium case
  • Analog and digital transmission systems
  • Suitable for large signal environments
  • Amplifier for low power applications
  • Driver amplifier
  • Maximum input power +20 dBm (100 mW)

References

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.