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vor 3 Jahren

6-2020

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Fachzeitschrift für Hochfrequenz- und Mikrowellentechnik

RF & Wireless

RF & Wireless Cost-Effective Enclosures Provide NEMA-Rated Durability and Protection Transtector Systems, an Infinite Electronics brand, announced that it has expanded its comprehensive line of NEMA-rated, weatherproof equipment enclosures with the addition of a broad range of fiberglassreinforced polyester (FRP) models. These new enclosures join a wide range of rugged Transtector solutions for housing and protecting sensitive equipment in harsh environmental conditions. Transtector’s new rugged, lightweight, cost-effective, FRP NEMA enclosures provide excellent protection in high temperature and corrosive environments, as well as isolation from live conductors and electrical shock. Available in a standard 30x24x11-inch size, each enclosure is easily configurable by using standoffs, blank aluminum and starboard accessory plates (sold separately). Ideal for wireless networks, small cells, industrial, utility and other dynamic applications, each enclosure Technology Which Eliminates Pulse Tuning provides vital protection for electronic equipment, enhancing network security and reliability. Additional features include: • UL and CSA approval ratings • Standard footprint for multiple applications • Space-saving, lightweight design that maximizes real estate and simplifies installation • Pad lock capabilities for additional security • Full line of accessories available • Dedicated technical support to assist with configurations ■ Transtector Systems www.transtector.com Tektronix, Inc. announced the new 2601B-Pulse System SourceMeter 10 µs Pulser/SMU Instrument, integrating a highspeed current pulser with DC source and measurement functions in one instrument. The new system incorporates Pulse- Meter technology for sourcing current pulses as short as 10 µs at 10 A and 10 V without the need to manually tune the output to match device impedance up to 3 µH. This is critical for minimizing device self-heating, which for optical devices, can result in erroneous measurements and the potential for damaging test equipment. The new 2601B-Pulse also includes all current and voltage source measure unit (SMU) ranges that are available in Keithley‘s standard Model 2601B System SourceMeter (40 V, 3A DC, 10 A Pulse). In addition, Tektronix is also releasing version 2.3 of Keithley‘s Instrument Control Software KickStart to support the pulsing function of the 2601B-Pulse. The 2601B-Pulse System SourceMeter was developed to serve the needs and complications of testing vertical-cavity surfaceemitting lasers (VCSELs), which are mission-critical for automotive light detection and ranging (LIDAR) applications. The instrument is ideal for testing VCSELs and LEDs, semiconductor device characterization, fault power management testing, surge protection testing and beyond. Built-in dual 1 MS/s,18-bit digitizers enhance the pulser‘s measurement function, enabling users to acquire both pulse current and voltage waveforms simultaneously, without the need to use a separate instrument. Unlike competitive instruments that require pulse tuning to minimize overshoot and undershoot on the pulse, the patent-pending 2601B-Pulse control loop system eliminates the need to manually tune for load changes up to 3 µH. This ensures that the current pulse has no overshoot or ringing when sourcing pulses ranging from 10 µs to 500 µs at a current up to 10 A, resulting in a fast rise time, accurate pulse output and high fidelity. Industry-First Technology New PulseMeter technology eliminates manual pulse output tuning no matter the amplitude and pulse width to ensure pulse fidelity. For automated system applications, the 2601B-Pulse‘s Test Script Processor (TSP) technology runs complete test programs from inside the instrument for industry-best throughput. TSP scripting In larger, multi-channel app li cations, the Keithley TSPLink technology works together with TSP scripting to enable highspeed, pulser/SMUper-pin parallel testing. Because the 2601B-Pulse System Source- Meter offers full isolation that does not require a mainframe, it can be easily reconfigured and re-deployed as test applications evolve. ■ Tektronix, Inc. www.tektronix.com 46 hf-praxis 6/2020

RF & Wireless 5 GHz FEM For WiFi Skyworks is pleased to introduce the SKY5-5501-11, a 5 GHz front-end module (FEM) designed for WiFi enabled devices including handsets and tablets. This advanced FEM supports simultaneous WiFi and licensed assisted access (LAA) protocols for highspeed data throughput in the 5 GHz WLAN and LAA spectrum. The SKY55501-11 is highly integrated and includes a lownoise amplifier, lowloss bypass path, power splitter, and single-pole, doublethrow transmit and receive switch. The SKY55501-11 builds on Skyworks’ portfolio of revolutionary products for 5G applications. Dual 2.4 GHz, 802.11ax FEM For WiFi 6 Skyworks introduced the SKY5-5242- 11 a dual 2.4 GHz, 802.11ax high-linearity, high-efficiency front-end module (FEM) designed for WiFi 6 enabled devices including handsets, tablets and mobile devices supporting WLAN and Bluetooth protocols. This highly integrated FEM includes two transmit and receive chains, an extremely low EVM floor power amplifier, low noise amplifier with bypass, and a SP3T antenna switch. The three transmit modes for high linearity, high efficiency and low gain provide optimal performance. The SKY55242-11 builds on Skyworks’ portfolio of revolutionary products for 5G applications. ■ Skyworks Solutions, Inc. www.skyworksinc.com hf-praxis 6/2020 Flexible 0.047 Lowloss Cable Assembly to 67 GHz Samtec announced a new flexible lowloss cable assembly with performance up to 67 GHz. The RF047-A cable assembly, using 1.85 mm male and female connectors, operates to 67 GHz with a maximum SWR of 1.4 or better. The connectors are solder clamp designs with fully captivated center contacts. The body components are passivated stainless steel with gold plated brass solder ferrule and beryllium copper contact. Other connector options offered include male and female 2.92 mm series, as well as male and female SMPM series. Custom connector options are also available. These high-performance assemblies are ideal for space-limited applications requiring high flexibility. ■ Samtec, Inc. www.samtec.com SMT Transistor Offers 2000 W Pulsed RF RFMW announced design and sales support for a highpower transistor from Ampleon. The ART2K0PEG LDMOS power transistor provides 2000 W of pulsed RF energy for ISM applications in the HF to 400 MHz frequency band. Offering 28.5 dB of gain and drain efficiency of 73 %, this transistor supports plasma generators, MRI systems, CO 2 lasers and particle accelerators. High breakdown voltage enables class E operation up to 50 V V DS while the ART2K0PEG is qualified up to a maximum V DS of 65 V. The device is characterized from 30 to 65 V. Integrated dual-sided ESD protection enables class C operation and complete switch off of the transistor. This “gull-wing”, SMT transistor is capable of withstanding load mismatches corresponding to a SWR of 65. Additional uses are found in radio and VHF TV broadcast transmitters as well as HF communications and Radar systems in the Aerospace industry. ■ RFMW info@rfmw.com www.rfmw.com High-Linearity Cascadable Gain Block for 5G mMIMO RFMW announced design and sales support for a high-linearity gain block from Qorvo. The QPA9126 supports an operational bandwidth of 1 to 6 GHz for 5G mMIMO and wireless infrastructure. Offering a P1dB of 20 dBm, gain is equal to 16 dB and OIP3 measures 35 dBm. Internally matched to 50 ohms, the QPA9126 draws 70 mA from a single 5 V supply with DC shutdown control. Offered in a 2 x 2 mm, SMT package. ■ RFMW info@rfmw.com www.rfmw.com WiFi 6 3.3V FEM Offers 33 dB in a 3 x 3 mm Package RFMW announced design and sales support for a WiFi 6 (802.11ax) front end module (FEM). The Qorvo QPF4230 optimizes an internal power amplifier for 3.3 V operation to conserve power consumption while maintaining high linear output power and leading edge throughput. Integrating a 2.4 GHz power amplifier (PA), regulator, SP3T switch, low noise amplifier (LNA), coupler and a DC power detector for power control feedback, the QPF4230 minimizes layout area in the application. Offering 33 dB of Tx gain and 15 dB of Rx gain with LNA noise figure of 2.1 dB this device is offered in a small 3 x 3 mm laminate package. ■ RFMW info@rfmw.com www.rfmw.com 47

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