5G’s Orthogonal Frequency Division Multiplexing (OFDM) brings with it a major design challenge, namely an inherent wide dynamic variation between a signal’s peak and the average power. The peak-to-average power ratio (PAPR) leads to inefficient transmission performance. That’s because the OFDM waveform is created by the sum of multiple sinusoidal signals that can exhibit constructive…
Broadened amplifier line covers VHF, UHF, L, S, C, X and Ku bands
Pasternack has broadened its line of high-power amplifiers engineered for a wide array of market applications in VHF, UHF, L, S, C, X, and Ku bands. This new series of high-power amplifiers provides saturated output power levels ranging from 10 watts to 200 watts and is designed with rugged, military-grade, coaxial packages with an operational temperature range from…
Amplifiers boost satcom, 5G infrastructure signals
The CMX90G701 and CMX90G702 gain blocks from CML Microcircuits operate from 6 GHz to 18 GHz.
Guerilla RF adds to its cellular PA line
The GRF5521 provides ¼ watt of power from 2.11 GHz to 2.17 GHz,
Transimpedance amp could enable 100 Gb/sec PON
The upstream linear burst-mode transimpedance amplifier is the first to support 50 Gb/sec NRZ and 100 Gb/sec PAM4. They could drastically increase internet connection speeds and 5G infrastructure.
Dual LNA targets 5G base stations
The QPB9378 from Qorvo covers 5G’s mid band, seen as the sweet spot for range and bandwidth.
Guerilla RF adds 0.1 W PA at IMS
The GFR5317 linear power amplifier boosts signals in 5G repeaters, antenna systems, and automotive “shark fins.”
How DPD improves power amplifier efficiency
Digital predistortion compensates for an amplifier’s nonlinearities, letting it operate in its nonlinear region for maximum power efficiency.
5G RFICs take mmWave from baseband to antenna
Sivers Semiconductors’ TRB02801 and TRB03901 provide a complete baseband-to-antenna signal chain, covering 28 GHz and 39 GHz. 5G Technology World spoke with CEO Anders Storm about the RFIC functions and applications.
Amplifier boosts signals from 2 GHz to 18 GHz
The AM1111 amplifier from Atlanta Micro provides 16 dB of gain from 2 GHz to 18 GHz. You can cascade multiple amplifiers to boost signals as needed. Powered by +5 V and packaged in 3 mm QFN package, the AM1111’s input and output provide a 50-Ω DC-blocked impedance.It consumes 500 mW and has a 2.5…