Industry News

An Extremely Miniaturized Microstrip Bandpass Filter

A novel miniaturized UHF bandpass filter, using diagonally end-shorted coupled lines and lumped capacitors, is proposed. The new filter is not only as short as a few degrees in size, but also shows a wider stop band. A two-stage bandpass filter of this...
High performance bandpass filters, with miniaturized size, narrow bandwidth, wide stop band and low cost, are required in modern wireless communication systems, especially in mobile and portable Internet systems. Planar reduced-size filters, such as λ/2 hairpin resonator1 and slow-wave resonator 2 filters have already been published. These filters have...
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Design Issues for a Solid-state Power Amplifier Integrated with a Planar Antenna

This article presents design and analysis related issues for a solid-state power amplifier (SSPA) integrated with a planar antenna. It discusses the suitability of different planar antenna structures to minimize EM interaction between the radiator and ...
Efficiency, output power and compactness are the most important parameters of a system for RF/microwave transmitter applications. The power amplifier consumes most of the DC power in a transponder. Thus, much attention is required to maximize the efficiency of the power amplifier. A high efficiency power amplifier allows compact...
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NEC Licenses DMR Patents to US

NEC Corp.</B> has licensed its US digital microwave radio (DMR) patents and counterpart patents, covering fundamental telecommunication techniques such as quadrature amplitude modulation (QAM), to <B>Microwave Networks Inc</B> (MNI).
NEC Corp. has licensed its US digital microwave radio (DMR) patents and counterpart patents, covering fundamental telecommunication techniques such as quadrature amplitude modulation (QAM), to Microwave Networks Inc (MNI). The companies also made a cross-agreement not to assert their DMR patents in the future. The company has previously licensed...
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Russian/US Understanding Reaches New Standards

The Russian national standards body, the Russian Federal Agency on Technical Regulating and Metrology, has signed an historic Memorandum of Understanding (MoU) with ASTM International, originally known as the American Society for Testing and Materials.
The Russian national standards body, the Russian Federal Agency on Technical Regulating and Metrology, has signed an historic Memorandum of Understanding (MoU) with ASTM International, originally known as the American Society for Testing and Materials. The goals of the MoU are to remove technical barriers in economic and trade...
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Conference is Greeted with Open ARMMS

The recent ARMMS RF & Microwave Society two-day conference, held in Steventon, Oxfordshire, UK, was well attended, lively and productive.
The recent ARMMS RF & Microwave Society two-day conference, held in Steventon, Oxfordshire, UK, was well attended, lively and productive. It featured speakers from industry and academia and covered a wide range of topics including synthetic aperture radar, RFID, geodetic grade antenna design, waveguide horn design, interference measurements, filter...
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A Digital Instantaneous Frequency Measurement Receiver

Most radar warning (RW), electronic countermeasures (ECM) and electronic intelligence (ELINT) systems employ instantaneous frequency measurement (IFM) to identify threats, map the electronic battlefield and eventually implement deceptive countermeasures. In its development of systems in this sector Elisra has made advances with the introduction of its Digital Instantaneous Frequency...
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The Book End

Electrically Small, Superdirective and Superconductive Antennas R.C. Hansen Wiley Interscience • 179 pages; $100 ISBN: 0-471-78255-6 The field of electrically small antennas has long been important for frequencies below roughly 1 GHz. These antennas have characteristics in common that limit performance: low radiation resistance, high reactance, low efficiency, narrow...
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New Literature

Application Note The Evolving Wireless Standards poster and application note are based on IEEE 802.16e mobile WiMAX. As a quick reference guide, the wireless poster highlights a range of information on the latest cellular and wireless connectivity technologies and applications. The “IEEE 802.16e WiMAX OFDMA Signal Measurements and Troubleshooting”...
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