White Papers & Application Notes
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Application Note: Reflectometer Measurements - Revisited
6/15/2003
Twenty four years ago Wiltron (now Anritsu) published a Technical Review "Why Tolerate Unnecessary Measurement Errors", long since out of print...
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Application Note: Radio Frequency Interference In Hospitals
7/12/2011
Hospitals are replete with sources of interference and many applications that require the ultimate in reliability to assure patient safety. Patient telemetry systems, cellular telephones, bluetooth devices, security radio systems, police and paramedic radios, Wi-Fi, microwave ovens, cordless telephone systems, light dimmers, fax machines, floor buffers, elevators, elevator controls, nearby cellular base stations, broadcast transmitters, and ultrasound systems all contribute to the harsh RF environment in hospitals.
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Application Note: Pulsed S-Parameter Measurements
11/10/2009
Many devices, particularly power devices, were not designed to operate continuously or with CW signals. When devices are being tested on-wafer, this becomes even truer since thermal resistance is often greatly increased. In these cases, S-parameter measurements must often be performed in a pulsed environment. The objective of this article is to provide an understanding of performing general S-parameter measurements with a vector network analyzer (VNA) across a range of pulsed conditions for both RF and microwave/mm-wave measurement applications.
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Application Note: Practical Tips On WiMAX Field Measurements
4/10/2007
Worldwide interoperability for microwave access (WiMAX) digital communications technology is based on wireless transmission methods defined by the IEEE-802.16 air interface standard. IEEE 802.16-2004 (fixed WiMAX), is optimized for fixed and nomadic broadband wireless access to homes and businesses. This article focuses on the measurement procedures for fixed WiMAX networks and presents practical field measurement tips and procedures which will help a field-based network technician or RF engineer conduct measurements on WiMAX networks
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Application Note: Practical Tips On WCDMA Measurements
9/13/2006
This article presents measurement tips and procedures which will help a field-based network technician or RF engineer conduct Node B measurements on WCDMA access networks...
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Application Note: Practical Tips On Measuring Interference
1/13/2010
By utilizing the ISM (Industrial-Scientific-Medical) frequency bands, the wireless industry has been able to exploit the increasing popularity of unlicensed communication systems. However, their unlicensed nature carries with it the seeds of serious signal interference problems. Such ISM system designs are type-approved but are then installed by unlicensed owners or contractors. These conditions sometimes lead to signal configurations that unintentionally interfere. The objective of this article is to present measurement tips and procedures which will help a field technician measure signal interference in operating communications systems. By Anritsu Company
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Application Note: Mixer VNA Measurements
7/13/2010
By Anritsu Company Frequency-translated devices are key components of any communication system, whether they are up-converters, down-converters, or basic mixers. Since their input and output frequencies are different, they require special features and setups for vector network analyzer (VNA) measurements. With the frequency offset capability of today's VNAs, where the source and receiver are independently synthesized, such measurements are possible and require a much less complicated setup.
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Application Note: Measuring Video Feedthrough in Pulsed Signals
8/29/2005
Video feedthrough is a very misunderstood term, which is used in the specification of pulse performance for microwave synthesizers.
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Application Note: Insertion Loss Measurement Methods
7/1/2003
Transmission feed line system performance plays an important role in wireless network coverage...
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Application Note: Hot S22 and Hot K-factor Measurements
8/22/2003
Practical S-parameter Measurements for Power Amplifier Applications
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