Murata phased array antenna module begins mass production

Murata Manufacturing Co., Ltd. (hereinafter referred to as “our company”) has commercialized the “LBKA series” (hereinafter referred to as “this product”), a small phased array antenna module that supports the 5G millimeter wave frequency band and can radiate radio waves in two directions. Mass production has already begun, and it is scheduled to be loaded into smartphones that will be launched in the second half of 2021.

In recent years, many 5G-compatible smartphones have appeared on the market. 5G communication uses two frequency bands, the “Sub-6” frequency band below 6 GHz and the “millimeter wave” frequency band from 24.25 GHz to 52.6 GHz. The advantages of 5G are “ultra-high speed, large capacity”, “ultra-low latency” and “multi-point simultaneous connection”, but the millimeter wave that effectively realizes these three points is easily affected by obstacles, and the terminal communication performance is difficult to guarantee. Therefore, except for some regions such as the United States and Japan, terminals supporting millimeter waves have not yet been launched on the market. In addition, improvement in communication performance is essential for stable transmission and reception of radio waves, but the number of components inside the terminal is increasing, and the installation space for communication components is limited. In order to achieve more stable communication, it is necessary to transmit and receive radio waves on the side of the terminal, but the thinning of the terminal is often limited due to the installation of the antenna.

In order to solve these problems, this product uses our company’s unique resin multilayer substrate MetroCirc™ (1) in an L-shape, and the antennas are arranged on two substrates facing different directions. Therefore, one RFIC (2) can Radio waves are radiated in two directions. This enables stable millimeter-wave wireless communication and contributes to thinner terminals and lower manufacturing costs by reducing the number of communication parts.

Nexperia Launches First A-Select Zener Diode Series

Basic semiconductor specialist Nexperia has announced the launch of the industry’s first A selection Zener diode series. The BZT52H-A (SOD123F) and BZX384-A (SOD323) series have a tolerance of only ±1%, providing a higher accuracy voltage reference than the B (±2%) and C (±5%) variants . To meet the growing needs of mobile, portable/wearable, automotive and industrial applications, and to meet increasing regulatory requirements, both families are also available as the Q portfolio.

“Nexperia’s family of A-selection Zener diodes covers all applications from 2.4 V to 75 V while providing precise voltage references with the lowest tolerances,” said Paula Stümer, Product Manager at Nexperia. “By replacing a B or C select device with a pad-compatible A select Zener device, an engineer can reach the limits of a MOSFET if applied to a voltage that limits the gate-to-source path or the drain-to-gate path, or from a wider variety of suitable MOSFETs .”

A Select Zener diodes with a nominal operating voltage range of 2.4 V to 75 V (E24 range). These devices feature ≤40W non-repetitive peak reverse power dissipation, ≤250mW total power dissipation, and low differential thermal resistance. The low tolerance provides higher accuracy voltages, which is especially important for test and measurement applications and enables engineers to replace more expensive voltage reference devices. Instead of directly protecting the MOSFET, a more cost-effective alternative is to place a Zener diode in parallel to the drain-gate path. Once the Zener diode breaks down, the MOSFET turns on to prevent drain-source avalanche breakdown.

Axiomtek launches 1.8-inch fanless embedded single-board computer

Recently, Axiomtek is honored to launch a new credit card-sized 1.8-inch fanless embedded single-board computer; equipped with Intel® Celeron® CPU N3350, built-in Intel® integrated Gen9 graphics engine, and can be used with VPU AI accelerator card. It supports 5G modules and mainstream operating systems of Linux, Android and Windows® on the market, and is especially suitable for AIoT artificial intelligence Internet of Things applications such as service robots, industrial automation, smart retail, video surveillance, and smart cities.

“Highly integrated 1.8-inch embedded single-board computer KIWI310 has rich I/O and powerful expansion capabilities, greatly shortening the time to market and reducing development costs. It is equipped with a set of M.2 Key E 2230 slots for additional installation and matching with the new generation of Intel® Movidius™ Myriad™ X VPU AI accelerator card; Furthermore, Axiomtek I/O card supports 5G modules to catch up with the trend of 5G business opportunities. Start SBC through USB Type-C or additional PoE modules to ensure that the overall system Sustained and stable. In order to comprehensively improve the IoT function of embedded boards, it supports different types of devices such as external PoE modules, temperature sensors, RFID, G acceleration sensors, light sensors, and LEDs, which helps to optimize the artificial intelligence industrial Internet of Things and embedded related application fields.” said Lin Bopeng, Embedded Core Computing Product Planning Department of Axiomtek.

Axiomtek’s ultra-mini embedded board KIWI310 has a built-in up to 4GB of LPDDR4 embedded memory and a 64GB eMMC embedded storage device, and supports a wide operating temperature range from 0°C to 60°C. In order to meet the diverse needs of customers, the smallest embedded board in history still has a built-in Realtek RTL8111 Gigabit Ethernet port that supports Wake-on-LAN and PXE Boot ROM functions. It is also equipped with 2 sets of high-speed USB 3.2 Gen1 ports, 2 sets of USB 2.0 ports and 1 set of micro HDMI display interface. The 40-pin with GPIO signal provides I2C, UART, SPI and GPIO signal sources. It also has a hardware monitoring function, which can monitor the temperature and voltage of the CPU and the system at any time to ensure the reliable and stable operation of the system.

This article is comprehensively compiled from Murata Nexperia Axiomtek
Reviewing editor: Peng Jing

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