vor 1 Woche

HF-Praxis 5-2018

Fachzeitschrift für Hochfrequenz- und Mikrowellentechnik

RF & Wireless 4x4 MIMO

RF & Wireless 4x4 MIMO Sector Antennas Offer 120° Beamwidth RF Modules Speed Time to Market RFMW, Ltd. announced design and sales support for 4x4 MIMO/MANET sector antennas from Southwest Antennas. The 1009-036 is a quad polarized design while the 1009-34 is a dual polarized design. Both antennas offer 12 dBi of gain and handle 50 W of RF power. Integral mounts offer 0 to 15 degrees of adjustable elevation downtilt in 2.5 degree increments. The four input connectors are Type N female and the radome is made of white, UV stable Kydex. Model 1009-036 supports frequencies from 4.4 to 5 GHz. Model 1009-34 supports 2.2 to 2.5 GHz. Used in base station infrastructure applications and Mesh network radios, these antennas come complete with hardware for mounting to one or two inch diameter poles. 25 dB Low Distortion Power Doubler Supports CATV RFMW, Ltd. announced design and sales support for Qorvo’s CATV power doubler model QPA3248. Offering a unique feature of adjusting DC current via an additional pin out, the QPA3238 allows distortion optimization versus power consumption over a wide range of output levels. Operating from 45 to 1003 MHz, return loss is 17 dB for faster design times. Gain is 24.5 dB minimum with a low noise figure of 4 dB. The QPA3248 draws 480 mA maximum from a 24 V supply and is offered in a SOT-115J package. ■ RFMW, Ltd. Microsemi Corporation announced the ZL70123, a new radio frequency (RF) base station module for implantable devices utilizing the Medical Implant Communication Service (MICS) RF band. The new module was developed specifically for external controllers and monitors of implantable medical devices. Microsemi’s ZL70123 base station module, when combined with the company’s existing ZL70323 implant module, provides a complete solution for achieving the highest performance in next-generation medical networks (Med-Net). Both modules are based on the latest generation of Microsemi’s ultralow power (ULP), MICS-band, radio transceiver chip, which has been deployed in more than three million implantable devices over the last ten years. Radio frequency technology is increasingly being used in a wide variety of medical implantable applications, including cardiac care, physiological monitoring (e.g., insulin monitoring), pain management and obesity treatments. According to a recent report from P&S Research, the market for active implantable devices, which includes pacemakers, defibrillators and neurostimulators, is expected to grow at an eight percent compound annual growth rate (CAGR) over the next five years, reaching nearly $ 29 billion by 2023. Microsemi’s new ZL70123 base station module is ideally suited for the unique needs of this growing market. Microsemi’s Med-Net radio operates in the 402 to 405 MHz MICS band. Multiple ULP wake-up options are supported, including a 2.45 GHz, industrial, scientific and medical (ISM) band, wake-up option. The existing Microsemi ZL70323 implant module implements all RF-related functions needed to deploy an implant node in a MICSband RF telemetry system. It consumes less than 6 mA when transmitting or receiving data and consumes just 10 nA when in its sleep state. The integrated antenna tuning circuit allows the module to be used with a wide range of implant antennas (as nominal antenna impedance is 100+j150 ohms). The module includes the following major blocks: • ZL70103-based MICS-band RF transceiver with integrated matching network, SAW filters for suppression of unwanted blockers and antenna tuning • 2.45-GHz wake-up receiver matching network • Integrated 24 MHz reference frequency crystal • Decoupling capacitors The new Microsemi ZL70123 base station module includes all RF-related functions required to deploy external device functions in a MICS-band RF telemetry system. It is designed to meet regulatory requirements including Federal Communications Commission (FCC), European Telecommunications Standards Institute (ETSI) and International Electrotechnical Commission (IEC) standards. Additional features include: • Integrated matching network with a nominal 50 ohm RF port • Bandpass filter for suppression of unwanted blockers • 2.45 GHz wake-up transmitter with a nominal 50 ohm RF port • Fully shielded, 18 × 12 × 3 mm package ■ Microsemi, Corp. 68 hf-praxis 5/2018

RF & Wireless Small Form Factor Omni Antenna RFMW, Ltd. announced design and sales support for small form factor antenna from Southwest Antennas. The 1001-202 is a half-wave dipole, omni antenna for 2.1 to 2.5 GHz applications. Measuring only 4.29 inches in height, it offers 2.15 dBi of peak gain. The antenna features a tough, black, G10 fiberglass radome and a blackchrome, TNC(m), non-rotating, RF connector, making the antenna ideal for lowvisibility or tactical applications such as tactical hand-held radios, body-worn radio systems, unmanned robotics platforms and other applications where size and weight are critical. Capable of handling up to 50 W of RF power, the 1001-202 antenna has a vertical elevation beamwidth of 77 degrees. ■ RFMW, Ltd. Millimeter-Wave Removable End Launch Connectors Pasternack has just released a new line of high-speed end launch connectors. These new removable end launch connectors are perfect for signal integrity measurements, coplanar waveguide, chip evaluations, SERDES, substrate characterization, 25 GbE and test fixture applications. Pasternack’s new series of high-speed end launch connectors is comprised of four models that provide SWR as low as 1.10:1 and a maximum operating frequency of 40 to 110 GHz. Connector options include 1 mm end launch (110 GHz), 1.85 mm end launch (67 GHz), 2.92 mm end launch (40 GHz) and 2.4 mm end launch (50 GHz). These highperformance end launch connectors don’t require soldering, are re usable and have a compact profile with a 0.350 inch mounting width. They feature an outer conductor made of stainless steel and a gold-plated beryllium copper center contact. These highspeed end launch connectors are ideally suited for high-speed digital and mmWave system development. ■ Pasternack 3 GHz Sector Antennas with Improved Performance KP Performance Antennas announced that it has released new high performance, 3 GHz sector antennas to its portfolio for use in WISP networks. KP’s expanded line of 3 GHz sector antennas consists of four new models including the KP-3SX4-65 quad-port 18 dBi sector, the KP-3S3S-65SA which features two 3 GHz antennas in one radome, the KP-3DP65S-45 18 dBi Dual Polarized sector, and the KP-3DP120S-45 3 GHz sector which is specially designed for LTE applications. The unique design of these antennas minimizes interference by utilizing a 65 degree gain pattern and ±45 degree slant dual polarization scheme. They are designed to provide high gain and maximum coverage and feature improved front-to-back and pattern roll off that allows for higher spectral efficiency. These antennas operate in the popular frequency range of 3.3 to 3.8 GHz and deliver SWR from 1.5 to 1.7. ■ KP Performance Antennas Ultra-Low Power Transceiver for Bluetooth 5 In the Internet of Things, numerous tiny sensor nodes are embedded in our environment. Reducing the power consumption and enabling operation at low supply voltage of IoT radio transceivers is key to enable reliable multi-year battery life of the billions of IoT devices in our environment. Furthermore, new applications are empowered by reducing power consumption and supply voltage, such as leave-behind sensors or wearables. Imec, together with Renesas, developed a fully-integrated, highly energy efficient BT5 transceiver which showcases the best RX figure-of-merit (FoM) and the lowest supply voltage among the state-of-the-art (0.8 V). A low supply voltage of 0.8 V is beneficial because it extends battery life by up to 50%, reduces the complexity of the power management unit, and allows the use of a wider range of energy sources such as energy harvesters. The transceiver consists of a novel phase-tracking RX, a digital TX based on an all-digital PLL (ADPLL) and a PHY-layer digital baseband. A hybrid loop filter enhances interference tolerance, in conjunction with precise frequency control enabled by the ADPLL. The receiver fronted achieves a sensitivity of -95 dBm, while consuming only 2.3 mW (non-duty-cycled) at 0.8 V. The transceiver chip is implemented in 40 nm CMOS, with a core area of only 0.8 mm 2 , including on-chip matching. ■ Imec hf-praxis 5/2018 69