What is an anechoic chamber? Absent of reflection signals and electromagnetic emanation, an anechoic chamber (Figure 1) creates an ideal space for design engineers to test electronic components and devices. To eliminate external interference, anechoic chambers are manufactured with absorbing materials like ferrite tiles and conductive carbon. The resulting silence provides an opportunity to achieve precise measurements of device performance. Any electronic device design, either wired or wireless, is required to meet certification specifications. Regulation types vary by region and are government mandated. Figure 1: Example of pre-compliance testing of a PC in Connected Development’s in-house anechoic chamber.Source: Connected Development…
Author: RFMW
What is an anechoic chamber? Absent of reflection signals and electromagnetic emanation, an anechoic chamber (Figure 1) creates an ideal space for design engineers to test electronic components and devices. To eliminate external interference, anechoic chambers are manufactured with absorbing materials like ferrite tiles and conductive carbon. The resulting silence provides an opportunity to achieve precise measurements of device performance. Any electronic device design, either wired or wireless, is required to meet certification specifications. Regulation types vary by region and are government mandated. Figure 1: Example of pre-compliance testing of a PC in Connected Development’s in-house anechoic chamber.Source: Connected Development…
RFMW announces design and sales support for a transmit/receive (T/R) module from Qorvo. The Qorvo QPM2100, GaAs MMIC front-end module, is designed for 2.5 to 4.0 GHz radar and combines a T/R switch, LNA with digital attenuator, and PA. Receive path performance is 30 dB gain with 1.2 dB noise figure. The transmit path insertion loss is 1.2 dB. Switching time is <15 nS. A 7 x 7 mm surface mount package coupled with high thermal conductivity die-attach process, allows the QPM2100 to perform well in high temperature environments. Its compact size supports tight lattice spacing requirements needed for S-Band…
RFMW announces design and sales support for SiTime’s SiT5156 series of Elite Platform™, MEMS Super-TCXOs. The SiT5156 series oscillators deliver ±0.5 to ±2.5 ppm stability performance and can be factory-programmed to any combination of frequency (from 1 to 60 MHz), voltage and pull range. Digital frequency pulling (DCTCXO) via I2C allows digital control of output frequency and pull range up to ±3200 ppm with frequency pull resolution down to 5 ppt. SiTime’s unique DualMEMS™ and TurboCompensation™ temperature sensing technology deliver stable timing in the presence of environmental stressors – airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI). Programmability enables…
RFMW announces design and sales support for a high-power transistor from Ampleon. The ART35FE, LDMOS power transistor provides 35 W of pulsed or CW RF energy for ISM applications ranging from 1 to 650 MHz. Offering up to 30 dB of gain and drain efficiency of >70%, this transistor supports plasma generators, MRI systems, CO2 lasers and particle accelerators. High breakdown voltage enables class E operation up to 48 volts VDS while the ART35FE is qualified up to a maximum VDS of 65 V. The device is characterized from 30 to 65 volts. Integrated dual-sided ESD protection enables class C…
RFMW announces design and sales support for a low noise GaAs pHEMT single ended RF amplifier IC. The Qorvo QPL1816, single ended LNA, balances low noise and distortion to provide an ideal solution for a wide range of broadband amplifiers used in Cable TV applications such as Optical Receivers and low noise front ends. Spanning a frequency range of 50 to 1800 MHz, the QPL1816 is available in a SOT-89 package for convenient layout and design in set top and infrastructure projects for 75 Ω CATV and satellite applications.
RFMW announces design and sales support for a high performance filter from Qorvo. The QPQ1298 is a compact, bulk-acoustic wave (BAW) band pass filter with 2595 MHz center frequency and 160 MHz bandwidth for Sub-Band 41 uplink/downlink applications in TDD macro cells and small cell base stations. The QPQ1298 insertion loss is 2.5 dB (typical) with high out-of-band attenuation of WiFi signals. Offered in a 2.0 x 1.6 mm package.
RFMW announces design and sales support for a Wi-Fi (802.11n-ax) front end module (FEM). The Qorvo QPF4216B FEM delivers higher power and better throughput in Wi-Fi 802.11ax systems than competing devices. Integrated matching minimizes layout area and the device is pinned out so external filtering can be added in the optimal position. Performance features include 22 dBm Pout (at -43 dB DEVM) and 26 dBm Pout (at MCSO HT20). Transmit gain is 32 dB while receive noise figure is 1.8 dB. 5 GHz signals are filtered with 15 dB rejection. The QPF4216B integrates RF and DC power detection in a…
RFMW announces design and sales support for a Southwest Antennas’ dipole antenna. The 1001-216 omni-directional antenna operates from 1000 to 1500 MHz with a peak gain of 2.15 dBi. Designed to minimize stress placed on the antenna and radio connection, this flexible antenna features an innovative, environmentally-sealed, spring base giving it the flexibility to deflect/bend with impacts and return to its original position. Fully sealed to prevent rain, dust, and other debris from degrading antenna performance, the 1001-216 is fully submersible once securely mated to a radio. A rugged G10 fiberglass radome holds up to abuse in the field with…
RFMW announces design and sales support for mmWave, surface mount filters from Cubic Nuvotronics. The PSF29B02V2S interdigital filter has a pass band of 27.5 to 30.0 GHz with 50 Ω characteristic impedance. Handling a maximum input power of 2 Watts, this SMT filters’ low insertion loss is 0.5 dB max. and boasts 55 dB lower bandpass rejection and 44 dB upper bandpass rejection. PolyStrata technology provides wide bandwidth, exceptional filtering performance and minimal part-to-part variation for consistent results in production environments supporting 5G backhaul, satellite communications, RF telemetry, and instrumentation. RoHS compliant, PSF29B02V2S filters are available on tape and reel…