Herzlich Willkommen beim beam-Verlag in Marburg, dem Fachverlag für anspruchsvolle Elektronik-Literatur.


Wir freuen uns, Sie auf unserem ePaper-Kiosk begrüßen zu können.

Aufrufe
vor 8 Jahren

10-2015

  • Text
  • Komponenten
  • Technik
  • Radio
  • Filter
  • Oszillatoren
  • Quarze
  • Emv
  • Wireless
  • Messtechnik
  • Bauelemente
Fachzeitschrift für Hochfrequenz- und Mikrowellentechnik

RF & Wireless Antennas

RF & Wireless Antennas Small, Embedded, GPS & WiFi Multiband Ceramic Antennas Pulse announced its embedded ceramic multi-band chip antennas that combine GPS and WiFi for high efficiency in a compact package. Their small size, low cost, high efficiencies, and multi-band capabilities fulfill the demands of many consumer and industrial electronic devices. These can be a seamless antenna solution for many Internet of Things (IoT) applications in the medical, transportation, pointof-sale, vending, utility, security, and tracking industries, as well as for Smart homes/cities. Pulse Electronics‘ W3095 is a 2-in-1 GPS/Glonass and dual-band WiFi/BT/ BLE (2.4 and 4.9-5.9 GHz) antenna which provides a significant reduction of antenna space when implementing both GPS and WiFi antennas on the same board. It has over 60% efficiency in the GPS/GLONASS bands, over 80% efficiency in the 2.4 GHz bands, and over 50% efficiency in the 5 GHz bands. It has a high isolation of at least 19 dB between bands. The W3056 is a compact, single-feed, dual-band, GPS and BT/BLE/WiFi ceramic antenna. It has over 65% efficiency in the GPS band and over 70% efficiency in the 2.4 GHz band. This dual-band antenna has a very small form factor of 10 x 3.2 x 1 mm (L x W x H) with a ground clearance area of 10.80 x 6.25 mm for an easy fit on surface mount applications. The W3056 has up to 2.5 dBi gain. These new embedded multi-band ceramic chip antennas are unique in the industry. Pulse Electronics‘ new W3095 and W3056 antennas are RoHS compliant and halogen-free. ■ Pulse Electronics Corp. www.pulseelectronics.com Test & Measurement Noise-Figure, Analog-Demodulation Measurement Applications for Signal Analyzer Keysight Technologies, Inc. announced the addition of its proven analog demodulation and noise figure measurement applications as software options to the UXA X-Series signal analyzer. Through the analyzer’s multi-touch user interface, the new software ensures intuitive and efficient operation for engineers creating advanced designs in aerospace, defense and wireless communications. The N9063C analog demodulation measurement application utilizes the UXA’s industry-leading RF performance, including phase noise, to achieve exceptional accuracy in the demodulation of AM, FM, FM stereo and PM signals. One-button measurements calculate metrics such as AM depth, FM deviation, total harmonic distortion (THD) and signal-to-noise-anddistortion ratio (SINAD). Engineers can display tabular results alongside RF spectra, demodulated waveforms and more. Low PIM High Power Flange Attenuator RFMW, Ltd. announced design and sales support for low Passive Inter-Modulation (PIM) attenuators from EMC Technology. When comparing the new 33P7024 (100 W) series to standard attenuators the difference is typically 10 dBc. The 33P702403.00F offers 3 dB of attenuation while the 33P702430.00F offers 30 dB attenuation. Designed for demanding infrastructure applications, both EMC’s 33P702403.00F and 33P702430.00F operate to 2.7 GHz with a maximum VSWR of 1.3:1. Featuring a tab launch and integrated heat sink, the 33P702403.00F and 33P702430.00F find applications in mobile network infrastructure, broadcast amplifiers and instrumentation. Nominal impedance is 50 ohms. ■ RFMW, Ltd. www.rfmw.com The N9069C noise figure measurement application offers unsurpassed measurement uncertainty, which is crucial to quantifying and reducing noise figure in leading-edge receivers and low-noise amplifiers. Onebutton measurements and touch-driven operation ensure superior ease-of-use when setting up measurements, performing the necessary calibrations, and characterizing noise figure and gain. Because the measurement applications are license-key enabled, users will experience minimal downtime when adding either one to an existing UXA. Keysight software is downloadable test and measurement expertise. From first simulation through first customer shipment, Keysight software tools enable engineering teams to accelerate from data to information to actionable insight. ■ Keysight Technologies, Inc. www.keysight.com Directional Coupler Covers 5...6 GHz The directional coupler 12A7NA-40S allows to support development of C-band radar subsystems. REC has developed this 5...6 GHz 40 dB coupler with very low insertion loss and high directivity. Other coupling values are also variable in the same package size. It improves the system performance, can accuratley determine signal to noise and transmit power when used in radar. The frequency variation ist ±0.75 dB, the insertion loss ist 0.25 dB, the VSWR is 1.25:1, and the directivity is 25 dB. A power peak (CW) as to 1500 W is possible (power average 225 W). The size of this new product is 1.90 x 0.89 x 0.50 inch. ■ Renaissance Electronics & Communications www.rec-usa.com 46 hf-praxis 10/2015

RF & Wireless Test & Measurement New Detectors & Limiters RLC offers a broad range of RF and microwave detectors and limiters. RLC also offers detectors with built-in limiters to protect the diode from potential damaging signals. RLC manufactures Tunnel, Zero Bias, Biased Schottky, Pulse Present, Threshold, and Waveguide type Detectors up to 50 GHz. The company offers these devices in connectorized, surface mount and drop-in packages. These devices offer flat frequency response and high sensitivity, and exhibit fast rise and falls time, quick recovery time, and low noise. ■ RLC Electronics, Inc. www.rlcelectronics.com New Millimeter Wave Continuously Variable Waveguide Attenuators Pasternack has introduced a new family of in-stock continuously variable waveguide attenuators with performance up to 110 GHz. These millimeter wave waveguide attenuators are commonly used in the aerospace, defense, industrial, telecom, instrumentation and medical industries for applications such as high efficiency RF/microwave transmissions, test benches, SATCOM, MILCOM and radar testing. The new continuously variable waveguide attenuators from Pasternack are offered in 5 unique models covering a broad frequency range of 33 to 110 GHz in five bands. Engineers often use this type variable attenuator when they are designing a system and are testing their design concepts in the lab. These ultra-high frequency variable waveguide attenuators allow the designer to see how the system will perform at various signal strengths and can also be used to determine the optimum signal performance of the system. Pasternack’s continuously variable waveguide attenuators can vary the attenuation level from 0 to 30 dB over the specified band allowing the user to dial in the attenuation level needed for the application. ■ Pasternack www.pasternack.com New Waveguide Detectors Pasternack rolls out a brand new collection of high performance zero biased waveguide detectors that exhibit optimum performance in Ka, Q, U, V, E and W frequency bands. These waveguide detectors are widely deployed in various aerospace, defense and commercial wireless applications used in instrumentation, power detection, power monitoring, direct detection receivers, high frequency communications, radar, SAT- COM, point-to-point radio, telecom, data links and R&D. Pasternack’s latest release of waveguide detectors consists of 6 unique models covering a broad frequency range of 26.5 to 110 GHz. The input ports use popular waveguide sizes ranging from WR-28 to WR-10, while the video output ports utilize SMA female connectors. The detector circuits use high performance GaAs Schottky Barrier Beam lead diodes with extremely low junction capacitance. These designs perform with minimal sensitivity variation resulting in a flat frequency response across the entire waveguide band. The new waveguide detectors from Pasternack are all zero biased, so no external DC bias or mechanical tuning is required. The package designs utilize rugged steel construction and are thermally stable. Integrated waveguide connectors make the outline extremely compact. Performance is guaranteed over 0 to +50 °C. These detectors offer negative output voltage polarity for a variety of applications. Typical voltage sensitivity levels range from -600 mV/mW to -3 V/mW. ■ Pasternack www.pasternack.com Antennas New embedded GNSS antenna Antenova Ltd, manufacturer of antennas and RF antenna modules for M2M and the Internet of Things, is announcing a new, embedded GNSS antenna, named ‘Sinica’, which operates on the 1559 – 1609 MHz satellite bands. This new antenna uses a novel design approach and new materials to achieve high performance from an ultra low profile antenna. Sinica is suitable for all positioning applications on the 1559 - 1609 MHz bands. It operates with all of the public satellite constellations - GPS, GLO- NASS, Baidou and Gallileo, which means it can provide accurate positioning combined with global coverage. The Sinica antenna is created from FR4 materials and new dielectric constant laminate substrates. It uses a new approach to antenna design, which has enabled the company to create an antenna with the high performance of a ceramic patch antenna, in a low profile part that can be placed neatly within a small printed circuit board. Sinica is designed for devices that need accurate positioning or tracking globally, which means it is suitable to use in drones, network devices and wearable electronics, or any other portable device or tracking application. Antenova’s product designers recently introduced the concept of “Design For Integration” (DFI), which considers how the antenna will operate when it is embedded with a manufacturer’s product. Antenova’s antennas are always used within a customer’s design, so they are designed to provide superior RF performance from within the device, and to make the integration of the RF elements easier for the designer. In addition to this, Antenova provides its customers with technical support during the design, integration and testing phases. Earlier this year, Antenova announced three new families of antennas for the fast growing M2M, wireless and IoT sectors. Sinica belongs to the lamiiANT family of new antennas for these market sectors. ■ Antenova www.antenova-m2m.com hf-praxis 10/2015 47

hf-praxis

PC & Industrie

© beam-Verlag Dipl.-Ing. Reinhard Birchel