Handheld Spectrum Analyzer Hits 7.5 GHz
Aside from offering convenience, hand-portable spectrum analyzers are increasingly providing higher performance and an impressive feature set. The 9102 handheld spectrum analyzer, for example, can now operate at frequencies up to 7.5 GHz. The ...
Arbitrary/Function Generator Simplifies FM Radio Test
Testing, aligning, and troubleshooting a conventional amplitude-modulation (AM)/frequency-modulation (FM) radio requires a good grasp of DC and AC electronic basics and RF behavior. A thorough knowledge of signal generators and oscilloscopes ...
Test Procedure Tackles HSDPA User-Equipment Rx Diversity
Receive (RX) diversity and advanced receiver technologies are used in mobile radios in both 3GPPUMTS and GERAN. Their job is to increase downlink performance in terms of capacity and coverage. In "Testing HSDPA UE Receiver Diversity," Rohde & ...
VCO Modules Exhibit 95-dBc/Hz Phase Noise
To satisfy test and measurement, military, microwave-radio, and other applications from 4 to 12.5 GHz, three wideband voltage-controlled-oscillator (VCO) modules have been spawned. The HMCC028, HMC-C029, and HMCC030 modules offer output frequency ...
I/Q Demodulator Spans 800 MHz To 2.7 GHz
A high-linearity direct-conversion in-phase/quadrature (I/Q) demodulator is striving to reduce the cost of third-generation (3G) and WiMAX base-station receivers. Dubbed the LT5575, it boasts an operating-frequency range from 800 MHz to 2.7 GHz. ...
T/R Switch Handles 50-W CW Power
By relying on a proprietary multi-octave technology, a family of high-power transmit/receive (T/R) switches promises to be compatible with the latest gallium-nitride (GaN) and LDMOS solid-state amplifiers. The switches cover the 20-to-2500MHz band. The ...
High-Q Inductor Saves Board Space
By leveraging advancements in micro-fabrication technology and internal coil formation, a mini-inductor has been created. Measuring just 0.4 X 0.2 X 0.2 mm, the RoHS-compliant LQP02TN offers high Q characteristics. In addition, inductance is ...
Combiners Span UHF, VHF, And 746 To 869 MHz
Control centers are the backbone of all cellular networks. To simplify cable installation and antenna mounting in these centers and mobile command vehicles, the TX RX Control Station Combiner (CSC) product line has been spawned. These products are ...
2-W Amplifier Covers 800 To 1000 MHz
A new power amplifier (PA) promises to satisfy applications ranging from RF-identification (RFID) readers to cellular infrastructure. Specifically, the 2-W MAAP-007649-000100 covers the 800-to-1000-MHz frequency band. At 900 MHz, its typical performance ...
MEMS Switches Make Slot Antennas Reconfigurable
Since their emergence in the late 1990s, several research groups have studied RF-microelectromechanical-systems (MEMS) antennas. To achieve multiple octave tunability, emphasis was placed on reconfigurable aperture (recap) and microstrip antenna ...
Measuring And Troubleshooting For IEEE 802.16e OFDMA
The measurement and troubleshooting of orthogonal-frequency-division-multiple-access (OFDMA) or mobile-WiMAX signals, components, and systems is not limited to digital demodulation or modulation-quality analysis. In fact, some of the most productive ...
Artificial Neural Network Determines Consistency Of Paper Stock
Microwave sensors can be applied to a variety of industrial measurement problems. Often, however, it is necessary to sift through large amounts of data in order to extract the parameter of interest from a given sensor's output. At Baylor University in ...
