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Industry News

Performing Transient Analysis on PLL Frequency Synthesizers

Use of system-level simulation tool with flexible behavorial modeling capability to simulate and enhance the performance of a wireless PLL circuit
Technical Feature Performing Transient Analysis on PLL Frequency Synthesizers A PLL can be considered a subsystem within a larger communications system, so it is appropriate to analyze this type of network with the help of a system-level simulator. The use of flexible behavioral models within the simulator allows only...
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A Feedforward Power Amplifier with Loops to Reduce RX Band Noise and Intermodulation Distortion

Introduction to a new power amplifier developed to reduce amplified noise and intermodulation distortion signals using a feedforward technique
Technical Feature A Feedforward Power Amplifier with Loops to Reduce RX Band Noise and Intermodulation Distortion This article proposes a new power amplifier approach for the reduction of amplified noise signals in the receiver (RX) band as well as intermodulation distortion signals in the transmitter (TX) band using a...
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A Large Bandwidth T-shaped Microstrip-fed Ground Plane Slot Antenna

Use of the finite difference time domain method to analyze the impedance of the T-shaped microstrip feedline structure
Technical Feature A Large Bandwidth T-shaped Microstrip-fed Ground Plane Slot Antenna The characteristics of a T-shaped microstrip feeding a ground plane slot antenna have been analyzed using the finite difference time domain (FDTD) method. The impedance and bandwidth of the proposed antenna depend highly on the design parameters. The...
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Topics in Communication System Design: Carrier Triple Beats

Analysis of carrier triple beats that create third-order intermodulation interference when two or more carriers are present in one channel
Technical Feature Topics in Communication System Design: Carrier Triple Beats Howard Hausman Miteq Inc. Hauppauge, NY Intermodulation interference is typically calculated based on two signals present in the RF or IF bandwidth. When the bandwidth is less than an octave, even-order intermodulation products, such as second- and fourth-order intermodulation...
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New Products

New Products COMPONENTS GaAs IC SP5T Switch The model AS195-306 GaAs IC SP5T switch features good harmonics and high IP3 in a compact package. The performance and size of the switch make it well suited for use as a transmit/ receive switch in GSM dual band handset applications. It...
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Around the Circuit

Around the Circuit INDUSTRY NEWS RF Micro Devices Inc. has agreed to acquire RF Nitro Communications Inc. Terms of the transaction were not disclosed. REMEC Inc. has signed a definitive agreement to acquire ADC Mersum Oy (Solitra) in Oulu, Finland, from ADC Telecommunications Inc. REMEC has agreed to purchase...
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New Literature

New Literature Products Brochure This new wireless and microwave products brochure includes electrical specifications and outline drawings of the company's new product releases. The new products include rotary step attenuators, micro-miniature and miniature fixed attenuators and a full line of high power terminations. Alan Industries Inc., Columbus, IN (800)...
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Web Update

Web Update Wireless Components This Web site offers components for wireless, space, defense automotive, health and more. Products include Xinger® surface-mounts, RF power-brand resistive products, AdrenaLine™ splitter/combiners and ferrite parts. The site features full-line searches, S-parameters, specs, rep/distributor locator, on-line RFQ, literature and sample forms. Anaren Microwave Inc., 6635...
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Workshops & Courses

Workshops & Courses Advanced RF Power Amplifier Techniques Topics: Theory and design of RF power amplifiers, both for mobile and basestation applications in modern communications systems. In-depth treatment of PA design, PA modes, envelope power management and linearization techniques. Site: Nice, France Dates: February 11-14, 2002 Contact: CEI-Europe, PO...
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Erratum

Erratum In "A Method of Measuring Large-signal S-parameters of High Power Transistors," a technical feature by Seok Kyun Park, Ik Soo Chang, Yun Seo Choi, Jun Won Huh and Young Kim that appeared in the August issue of Microwave Journal , Equations 4, 13 and 14 contained errors. The...
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