Microwave Engineering Europe - June 2008 - (Page 42)

42 PRODUCTS Log RF power detector 75 dB dynamic range over 40 MHz to 3.8 GHz The RF power detector provides a DC output voltage that is loglinearly proportional to its input power level. Within its measurement dynamic range, the detector exhibits bestin-class accuracy and linearity of ±0.8 dB over its rated operating temperature range of -40 to +85 degrees Celsius. Moreover, the LT5538 has outstanding sensitivity, capable of detecting signals as small as -75 dBm to as large as +10 dBm at 2.14 GHz. The device operates with a singleended RF input. It requires no external RF transformer, thus simplifying design while reducing costs. The LT5538’s dynamic range performance is ideal for RF power amplifier power control and monitoring for a wide range of wireless systems, as well as receiver AGC (Automatic Gain Control), and RSSI (Receive Signal Strength Indicator) functions. The device’s accuracy performance HSPA+ test solution for 3GPP compliant components Agilent Technologies has announced that its Vector Signal Analysis (VSA) software now offers HSPA+ analysis capability, claiming to be the only commercially available HSPA+ signal analysis test solution in the industry. In addition, the company’s Signal Studio software for 3GPP W-CDMA simplifies creation of the HSPA+ higher order modulation used in testing 3GPP-compliant components for base or mobile stations. Together, these software tools provide today’s R&D engineers with the data they require to successfully troubleshoot PHY layer signal problems. Agilent’s 89600 Series VSA software provides a powerful R&D tool for gaining greater insight into the signals employed in today’s emerging cellular and wireless networking formats such as HSPA, LTE and WiMAX™. The newly added HSPA+ functionalities include 64 QAM analysis for the downlink and 4-PAM (16QAM) analysis for uplink. Also supported are a predefined setup for Test Model 6 for the downlink, Code Domain Power, Composite EVM, Symbol EVM and more. Engineers can use the software to make HSPA+ measurements anywhere in the block diagram, from baseband to antenna, on digitized or analog signals — both uplink and downlink. In addition, the software works with more than 30 Agilent instruments, using spectrum and signal analyzers, oscilloscopes and logic analyzers. The Agilent N7600B Signal Studio software provides a flexible, application-specific solution for generating arbitrary waveform signals that comply with the 3GPP HSPA+ PHY layer specification, including 16QAM, 64QAM, 4PAM modulation, uplink sub-tests, and Test Model 6 predefined setups. When paired with the N5182A MXG vector signal generator, the N7600B claims industry-best ACLR performance. www.mwee.com/207403423 helps to minimize equipment calibration requirements, resulting in stable system performance and reduced operating costs. The LT5538 utilizes Linear Technology’s high speed bipolar process, enabling wide bandwidth and dynamic range performance. The fast output response of 100 ns rise time and 200 ns fall time to rapidly changing RF input signal levels make it suitable for rapid measurement of RF signal power in TDD (Time Division Duplexing) switching wireless operating environments, including WiMAX, TD-SCDMA, and other applications. www.mwee.com/207801162 Complete TD-SCDMA test solution for network deployment, installation, and maintenance Anritsu has introduced three new options that make its award-winning BTS Master and Spectrum Master families a complete TD-SCDMA handheld test solution for deploying, installing, and maintaining TD-SCDMA networks now being deployed in China. With the options, ﬁeld engineers, technicians, and contractors can accurately, quickly and easily make RF, demodulation, and Over-theAir (OTA) measurements on TD-SCDMA signals. The TD-SCDMA RF Measurement option offers a suite of test tools, including channel spectrum and power versus time. The channel spectrum view shows the shape of the transmitter and displays the signal’s channel power and occupied bandwidth. In addition, it displays the channel power and occupied bandwidth of the left and right channels. A power versus time view displays the power over one frame of the signal, or can zoom into a slot selected by the user. In the frame view, individual slot powers are also displayed. TD-SCDMA Demodulation measurements are used to measure the modulation performance of the selected Node B transmitter’s signal. With the demodulation measurement option, the BTS Master and Spectrum Master can display Code Domain Power (CDP) data screen and demod summary screens. Other measurement results include slot power; frequency error in Hz, EVM and Peak EVM; DwPTS power; Tau; noise ﬂoor; carrier feed through; and peak code domain error. OTA measurements provide an easy way to monitor all 32 user codes outside a base station. Spectrum Master displays the codes in two convenient formats sorted by codes or by Tau, indicating distance from a base station. . All three options can be used with the MT8222A BTS Master, and the Spectrum Master MS2721B, MS2723B, and MS2724B analyzers. www.mwee.com/207801164 Microwave Engineering Europe ● June 2008 ● www.mwee.com http://www.mwee.com/207801162 http://www.mwee.com/207403423 http://www.mwee.com/207801164 http://www.mwee.com

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Microwave Engineering Europe - June 2008 Contents Comment News Cover Feature Designing and Simulating a Wireless LAN Antenna 60GHz: Achieving the Ultimate Wireless Dream New Radar Developments Include HFETs to Challenge DMOS/LDMOS and a 77-GHz CMOS PA for Automotive Applications Testing Raises Concerns Over 802.11-Based High-Speed Bluetooth IP2 & IP3 Design Considerations with Direct Conversion I/Q Demodulator Receiver Products Calendar

Microwave Engineering Europe - June 2008

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