Crest factor (CF) is the ratio of a signal's peak amplitude to its average power. Also called the...
Are you ready for the IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI)? This year’s event takes place in Phoenix, Arizona, from August 5 – 9, bringing together numerous exhibitors showcasing the latest in EMC, signal integrity and power integrity techniques, and more.
While walking the Phoenix Convention Center, there’s one stop you cannot miss – booth #310 featuring Maury Microwave best-in-class solutions for EMC immunity testing. In this blog post, learn all about the products, leading capabilities, and demonstration that Maury Microwave will showcase at the 2024 EMC+SIPI Symposium.
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EMC immunity testing typically involves placing a device under test (DUT) in a controlled test chamber. There, engineers can observe and analyze how devices, systems, or equipment perform under different levels of electromagnetic interference, ensuring the design meets stringent EMC specifications and functions properly in its intended environment.
Amplifiers play a crucial role during this process, tasked with generating power levels strong enough to drive antennas to required field strengths. This ensures the equipment inside the chamber is evaluated appropriately, preserving test accuracy and compliance.
There are several essential parameters to consider when choosing the right amplifier for your test setup, some of which include:
- Frequency range: Emerging EMC immunity test standards are pushing to higher frequencies (6 GHz to 40 GHz). Wideband amplifiers ensure compliance with these new requirements.
- Linearity: Amplifiers boost a signal’s power, reproducing its input at an increased amplitude. Amplifier linearity ensures an accurate representation of the original signal without distortions.
- Modulation: The ability to handle complex, modulated signals effectively is vital for preserving signal integrity in systems that rely on modulation techniques.
Booth #310 will feature an EMC immunity testing demonstration, showcasing how Maury Microwave amplifiers, power sensors, and interconnects have the performance needed to meet emerging EMC requirements.
How does it work? First, a signal source generates a waveform, which is amplified by the MPA-series amplifier. The LLC-series coupler receives this signal as an input and outputs a portion to a 50-ohm load for termination and another to the RTP5000 series sensor, with signal transmission handled by StabilityPlusTM cable assemblies. In a typical EMC radiated immunity testing environment, the amplifier output would be directed to an antenna, which would test the equipment inside a chamber under different electromagnetic interference levels.
Below is a rundown of key capabilities featured in the demonstration that overcome critical EMC immunity test challenges.
- Offering a frequency range from 600 MHz to 67 GHz, the MPA-Series amplifiers provide the wideband ranges and linearity required for modern EMC testing.
- RTP5000 Series sensors measure, monitor, and verify power levels to maintain high-integrity testing.
- The LLC-series low-loss, high-power bidirectional airline coupler that offers unmatched performance with high directivity and low insertion loss for broadband performance.
- StabilityPlus cable assemblies, which provide consistent phase and amplitude characteristics, are used to ensure highly accurate signal transmission in demanding, high-frequency EMC test environments.
The MP-series of T&M instrument amplifiers (600 MHz to 67 GHz) ensure EMC immunity testing meets industry standards, offering high reliability, outstanding wideband ranges, and linear performance. All units support full CW, pulsed, AM, PM, FM, or complex modulation such as OFDM. The user-friendly remote-control features, integrated couplers, and power detection enable close positioning to the radiating object for minimal cable insertion loss.
Key Specifications and Features:
- State-of-the-art solid-state GaN PAs
- Broadband design for modulated signals
- Psat from 10W to KW
- Integrated protection circuitry and coupler
- Remote control; TTL and LVTTL options
The RTP5000 Real-Time Peak USB Power Sensors of the Boonton product line address challenges faced by engineers and technicians who design, verify, and maintain systems utilizing pulsed signals. The RTP5000 series incorporates Real-Time Power Processing™ and offers faster rise times; better time resolution; the fastest measurements (100,000 per second); and a complementary, simple, intuitive, and powerful graphical user interface.
Key Specifications and Features:
- Accurate pulse measurements
- Industry widest video bandwidth of 195 MHz
- Fastest rise time of 3 ns and finest resolution of 100 ps
- Crest factor, PAPR, CCDF, and statistical measurements
- Synchronized multi-channel measurements
StabilityPlus phase-stable cable assemblies (SP-series) set the standard for high-performance ruggedized microwave/RF cable assemblies. Designed specifically for phase-stable and amplitude-stable applications, StabilityPlus offers excellent measurement repeatability even after cable flexure. With a ruggedized, durable construction, StabilityPlus will outlast and outperform other assemblies resulting in a reduced total cost-of-test. StabilityPlus is equally suited for daily use with VNAs as well as high-end test instrumentation. StabilityPlus employs color-coded connectors to reduce potential for connection mistakes and is available with TNCA, SMA, Type N, 7mm, 3.5mm, 2.92mm, 2.4mm, and 1.85mm connectors up to 67 GHz.
Key Specifications and Features:
- The industry's best amplitude and phase stability with flexure
- Flexible to facilitate easy installation
- Durable, ruggedized and crush-resistant
- Color-coded connectors to avoid damage caused by connector mismates
The LLC-series of bidirectional airline couplers represents a breakthrough in high-power coupler technology. Combining precision machining with stellar electrical characteristics, LLC-series couplers offer unmatched performance through high directivity and low insertion loss for broadband performance.
The LLC-series’ high directivity is important as poor directivity can invalidate calibration and result in erroneous measurements. Its low insertion loss is critical for high-power applications in order to avoid power loss and eliminate drift due to heating. When used as part of a vector-receiver load pull setup this directly maximizes tuning range when combined with an impedance tuner.
Key Specifications and Features:
- High Power Handling For All Power Applications
- High Directivity For Improved Accuracy
- Low Insertion Loss For Maximum Performance
- Broadband Frequency Coverage For All Popular Applications
- Excellent VSWR For Improved Match
Maury Microwave at the 2024 IEEE EMC+SIPI Symposium
The Maury Microwave tradeshow page – https://info.maurymw.com/emc-sipi-2024 – features more information about the best-in-class solutions and must-see product demonstration in booth #310 at EMC+SIPI 2024.
