Signal Analyzer analyzes spectrum/broadband WLAN modulation.

Press Release Summary:



Suited for technologies that utilize multiple, narrowly spaced frequencies and require precise power management, R3681 employs proprietary Wizard of Module Test architecture; modular platform enables users to reconfigure test instrument to suit changing requirements. Product provides analysis bandwidth of 140+ MHz, 12 in. touch-screen display, and average noise level of -156 dBm, and 26 dBm third-order intermodulation distortion.



Original Press Release:


Advantest Unveils Two-In-One Solution for Spectrum and Broadband WLAN Modulation Analysis to North America Markets


High-end R3681 Signal Analyzer Sets New Standard in Signal Analysis

EDISON, N.J. - April 29, 2003 - Advantest America Measuring Solutions, Inc. (AAM), a wholly owned subsidiary of Advantest America Corp., which is the U.S. holding company for parent Advantest Corp. (NYSE: ATE, TSE: 6857), today debuted its new R3681 Signal Analyzer to the North American market. This high-end signal analyzer was developed for use in research and development of mobile communications, satellite communications, microwave repeaters and other technologies that utilize multiple, narrowly spaced frequencies and require precise power management. In addition, Advantest has released a software option for the new R3681 that enables users to perform modulation analysis according to the various emerging standards for next-generation wireless local area networks (WLANs).

The infrastructure of a truly networked world is rapidly materializing due to the burgeoning consumer demand for cell phones and WLAN Internet access, as well as manufacturers continuing to develop the components, devices and base stations required for next-generation wireless communications. To provide faster data rates for animation, video streaming and other similar data-intensive content, newer communications technologies increase both the number of channels within a given bandwidth and expand into higher frequencies.

According to a recent report, industry analyst firm In-Stat/MDR described 2002 as a transitional year for WLAN and predicts no slowdown in 2003. Demand for wireless devices is one of the key drivers behind the need for advanced test solutions for these devices. AAM President and Chief Executive Officer Makoto Nakahara stated, "Due to the increasing demand for these advanced applications, it is becoming increasingly crucial for manufacturers to use high-precision signal analyzers to minimize transmission errors and crosstalk in these devices. We are pleased to offer our new high-end signal analyzer to our North American customers to accommodate their rapidly evolving requirements."

R3681 Features and Benefits

The new R3681 joins AAM's family of test instruments, which employ Advantest's proprietary and process-proven Wizard of Module Test (WMT) architecture-a modular platform that enables users to quickly reconfigure their test instrument to suit their changing requirements. Thus, by adding future modules-such as signal and arbitrary waveform generators-users will be able to construct the most efficient test instrument for their target application with minimum additional investment. Furthermore, the R3681 also comes equipped with an analysis bandwidth of over 140MHz, which allows users to upgrade the R3681 to perform research on next-generation broadband wireless technologies by simply adding new options in the future.

The R3681 features a large, 12-inch, touch-screen display that can be split into four separate windows, with each window being the same size as the displays used in present-day spectrum analyzers. This enables the user to observe a signal from four different aspects without having to constantly switch back and forth between different screens. Moreover, the touch-screen display also makes the R3681 easy to operate by enabling the user to interact directly with the instrument.

With an average noise level of -156dBm and 26dBm (typical value) third-order intermodulation distortion, the new R3681 Signal Analyzer possesses a best-in-class dynamic range and sets a new standard for high-end signal analyzers geared at design-stage testing of wireless devices. When installed with its simultaneously released software option, the R3681 also can be used to perform OFDM (Orthogonal Frequency Division Multiplexing) modulation analysis according to the world's three emerging WLAN standards: IEEE 802.1la (U.S.); HiSWANa (Japan); and HiperLAN2 (Europe). In addition, by simply changing its OFDM modulation parameters, the R3681 has the capability to analyze signals that have yet to be specified by such standards.

Main Specifications

Spectrum Analysis
Frequency Range: 20Hz to 32GHz
1dB Gain Compression: +7dBm at 200MHz to 3.5GHz
Signal Purity: <-120dBc/Hz at 800MHz, 10kHz offset
Avg. Noise Level: <-156dBm at 1GHz, RBW 1Hz
3rd-Order Intermodulation
Distortion: > +22dBm at 2GHz

Modulation Analysis
Frequency Range: 50MHz to 6GHz
Bandwidth: < 25MHz


About Advantest

Advantest Corporation is one of the world's leading automatic test equipment suppliers to the semiconductor industry, and is also a producer of electronic and optoelectronic instruments and systems. A global company, Advantest has long offered total ATE solutions, and serves the industry in every component of semiconductor test: tester, handler, mechanical and electrical interfaces, and software. Its logic, memory, mixed-signal and RF testers, and device handlers, are integrated into the most advanced semiconductor fabrication lines in the world. Founded in Tokyo in 1954, Advantest established its North American subsidiary in 1982. Advantest America, Inc.; Advantest America R&D Center, Inc.; and Advantest Test Engineering Corporation are based in Santa Clara, Calif. Advantest America Design Center, Inc. is located in Portland, Ore. Advantest America Measuring Solutions, Inc., based in Edison, N.J., distributes Advantest electronic measuring instrument products in North America. More information is available at www.advantest.com/.

All Topics