White Papers

RSS

A novel microstrip planar triplexer for multi-mode/multi-band wireless systems has been proposed in this paper. The proposed triplexer is composed of a dual-band bandpass filter (BPF), a low pass filter using microstrip stepped-impedance hairpin resonators and simple associated matching circuits. The dual-band BPF is realized by using parallel coupled microstrip lines and open-loop stepped-impedance resonators (SIR) loaded with two shunt open stubs. Compared with the conventional triplexer configuration, it only needs to design two filters.

The choice and placement of a RFID1 tag on a product requires an investigation to determine optimal performance. Tags come in many sizes and shapes and their placement is dictated by the product size and the tags orientation with respect to the interrogator antenna.

This work encompases a set of phase noise and some other rules for microwave oscillator design in microwave receiving and transmitting chains intended for SDR radio systems. Engineering shown in this work, comes from error vector magnitude achievable in a system. A 10 dB difference between demanded EVM and CINR is a reserve needed for compensating of various errors, wich are inevitable caused by the elements in the frequency conversion chain. Using this design process, post-layout simulations show a phase noise of -110 dBc/Hz at the offset of 100 kHz.

This work encompases a set of phase noise and some other rules for microwave oscillator design in microwave receiving and transmitting chains intended for SDR radio systems. Engineering shown in this work, comes from error vector magnitude achievable in a system. A 10 dB difference between demanded EVM and CINR is a reserve needed for compensating of various errors, wich are inevitable caused by the elements in the frequency conversion chain. Using this design process, post-layout simulations show a phase noise of -110 dBc/Hz at the offset of 100 kHz.

The Polaris Wireless Location Signatures (WLS) technology is an extremely cost-effective software-based solution to the high-accuracy location determination problem, because no changes in the wireless device or in the wireless service provider’s base stations are required.

This application note explains how to generate LTE-TDD and LTE-FDD signals using Agilent N7624B/N7625B Signal Studio software along with Agilent ESG Vector Signal Generator. A step-by-step guide demonstrates time-gated/average burst signal measurement as well as CCDF measurement for LTE-TDD and LTE-FDD signals using the Agilent P-Series power meter and sensor.

The ZigBee 2.4 GHz Radios communicate in P2P, P2MP and mesh networks utilizing low power radio transmissions which are reliable in existing RF environments. Buildings, constructed of metal, brick and concrete, can offer challenges which ZigBee radios can overcome by navigation through mesh networks as well as ‘star’ and ‘cluster-tree’ networks.

Agilent gives you a wide selection of power meters and sensors for practically all your application needs – wireless communications, radar pulse measurements, components testing and more. We want to help you make better measurements—with the recommended equipment in less time, so we’ve lined up an array of resources in the form of application notes, technical notes and demo guides just for you.

There is a wide variety of coaxial connectors and cables available for use in the RF and Microwave spectrum. While often not much thought is given to these essential components, a misstep here can result in undesirable system degradation. Given that typical RF systems are comprised of any number of items, e.g. RF generators, amplifiers, attenuators, power meters, couplers, antennas, etc., it is not uncommon that a great deal of thought is given to these “high end” devices while mundane items such as connectors and cables are often treated as an “afterthought”. Here's a quick guied to the various types available and information every test engineer should have available.

This document details how to specify harmonics for a ZigBee FEM. It reviews the requirements from the different regulatory standards, analyzes through simulation harmonics content of offset quadrature phase-shift keying (OQPSK) spread spectrum modulation and evaluates the effects of the measurement bandwidth and detector on the harmonics level of both sine and ZigBee waveforms. Finally, measurement data is provided to illustrate the simulations results.