Whitepapers

Design of Microstrip Planar Triplexer for Multi-mode/Multi-band Wireless Systems

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.
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Managing Phase Noise in Microwave Chains

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.
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Accelerate your LTE Signal Burst Power Measurements

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.
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Managing Phase Noise in Microwave Chains

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.
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Data Communication Path in HVAC Systems Utilizing Wireless ZigBee Modules

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.
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