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		ISSUE DATE: JULY 2003			OPTIONS
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July 2003 - In This Issue

[Cover Story]
Instrument Checks GPS Noise Immunity
Global Positioning System (GPS) receivers (Rxs) now have widespread use in aircraft landing systems, shipborne navigation systems, and E-911 civil emergency location systems. Due to political threats and increasingly occupied bandwidth, dual-frequency...  — Bent Hessen-Schmidt

[News]
Tracking Advances In Solid-State Power
Transistor developers continue to push for higher power levels from a single die or package, but not to the exclusion of other performance parameters. Especially for commercial communications applications, device designers now emphasize improved...  — Jack Browne

[Design Features]
Linear Power Control Of GSM Amplifier Power
Power-control methods for integrated Global System for Mobile Communications (GSM) power-amplifier (PA) modules are many. New methods include approaches based on sensing current and sensing voltage. But the best performance can be achieved with a...  — Philip Sher

[Design Features]
Convert Distributed MICs To MMICs
Monolithic microwave integrated circuits (MMICs) offer considerable size and weight advantages over their microwave-integrated-circuit (MIC) counterparts. But realizing proven passive MIC components as MMIC designs can present a challenging set of...  — John E. Penn

[Design Features]
Test Spectrum Analyzer ACP Dynamic Range
Spectrum analyzers must deliver wide dynamic range to keep pace with increasingly demanding requirements for evaluating third-generation (3G) wireless systems and their multicarrier power amplifiers (PAs). An analyzer's published...  — John Barfuss

[Product Technology]
Management Makeover Marked By New Products
Innovative engineering often continues with or without the blessing of management. In the case of package supplier StratEdge (San Diego, CA), even the loss of venture capital did not deter the company's progress in hermetic high-frequency packaging,...  — Jack Browne

[Product Technology]
Agile Synthesizers Add List-Mode Tuning
Fast-switching synthesizers serve a wide range of measurement applications, including evaluation of frequency-hopping systems (such as Bluetooth) and testing of components and systems, such as antennas, requiring many test points. The PTS series of...  — Jack Browne

[Product Technology]
Spatial Combining Leads To MM-Wave Power
Millimeter-wave power usually suggests large vacuum tubes. The founders of Wavestream Corp. (West Covina, CA) have other thoughts on the topic, however, and now offer spatial-combining techniques in their grid-array amplifiers that promise to generate...  — Jack Browne

[Product Technology]
MEMS SPDT Switch Runs With +3 VDC
Microelectromechanical-systems (MEMS) technology has been commonly applied to RF components with moving parts, such as single-pole, double-throw (SPDT) switches, varactors, and inductors. Until now, low-voltage-actuated MEMS devices have been rare....  — Jack Browne

[Editorial]
Assembling This Summer's Reading
Summer months usually spell relief for overworked employees (in the form of vacations), and loss of productivity for employers (juggling work schedules because of those vacations). Some companies make the best of this conflict by subsidizing vacations...  — Jack Browne

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