OVERVIEW This App-Note provides a thorough examination of rectangular and double-ridge waveguides, highlighting their design, operating principles, advantages, and applications. It details specifications and power-handling considerations essential for RF systems. Waveguides are crucial in microwave engineering, offering low-loss, high-efficiency transmission for … [Read more...]
PPI Announces New Broadband Conical Inductors – Up to 110 GHz
Huntington, New York – August 2025 Passive Plus (PPI) has announced a new line of Broadband Conical Inductors for bias T’s, broadband chip manufacturing, communication platforms, high frequency, microwave circuitry, RF test set-ups, test & measurement, test gear, test instrumentation and transmission amplifiers. These special RF chokes are used to filter RF and … [Read more...]
Myths and Legends of EMI in PCB Design
Many designers struggle with EMI and EMC challenges, and there are many myths surrounding EMI that do not help designers overcome EMC hurdles. Some designers may lack experience, while others may know EMI/EMC rules but apply them incorrectly. There is also an issue of delegation, where EMI/EMC is sometimes seen as not being a designer’s problem. No matter who is … [Read more...]
IoT Systems with mmWave Sensors
One of the most common applications of Internet of Things (IoT) devices is sensing, followed by transmission of raw data back to a base station or server for storage and further analysis. The most common of these sensing tasks seems to be environmental sensing, such as monitoring gas concentrations, temperature, humidity, etc. These devices are so ubiquitous that they … [Read more...]
Regulatory Lunch Break: Alphabet Soup
Over several decades, the FCC, the US Trade Representative, Department of Commerce (NIST) and the Industry (TCB Council, ACIL, Private Labs, including WLL) have been involved with opening up regulatory trade arrangements under the guise of “Mutual Recognition Arrangements” (MRAs). The purpose of MRAs is to even the playing ground for labs and their industrial clientele. In the … [Read more...]
Skip-Layer Routing for High Bandwidth Channels
As we have seen from discussions on chiplets and their routing standards in substrates, many of the routing techniques used in PCBs also apply in packaging. Microstrip and stripline structures can both be used in IC substrates, and the design approach is basically the same as in PCBs. This routing is fine for the majority of digital interfaces, but when we get to wideband … [Read more...]
Navigating Signal Integrity in Chiplet Designs
As the semiconductor industry embraces the chiplet design approach, electrical engineers are witnessing a significant shift in how performance, cost efficiency, and scalability are achieved. While this modular design philosophy offers advantages, it also introduces challenges to signal integrity (SI). For EMI/EMC engineers, the awareness of these signal integrity challenges is … [Read more...]
SPEAG combines CMX500 OBT with the DASY83D system for automated SAR testing of 5G NR devices
SPEAG and Rohde & Schwarz expand their long-term collaboration with the combination of the CMX500 wideband radio communication tester with the DASY83D utilising the enhanced DASY8 Application Programming Interface. This combination allows manufacturers of wireless devices to perform Specific Absorption Rate tests of 5G FR1 devices using the future-proof CMX500 … [Read more...]
EMV 2025: Rohde & Schwarz Presents New Antenna for EMI Measurements in Frequency Range from 14.9 GHz to 44 GHz
At the EMV 2025 tradeshow in Stuttgart, Rohde & Schwarz displays for the first time its R&S HF1444G14 High-gain EMI microwave antenna with outstanding performance. The antenna covers a frequency range from 14.9 GHz to 44 GHz. It meets the requirements of the standards CISPR 16-1-4 and CISPR 16-2-3. Precise mechanical construction and optionally … [Read more...]
An Easy Way to Calculate a Microwave Wavelength in Inches
A colleague, Mike Stasiowski, and I came up with this quick GHz wavelength formula while designing quad ridge circular polarized jamming antennas for the military when working at Nurad. The textbook formula (wavelength = c/f) where: c = the speed of light 3.00×108 m/s, and f = frequency in Hz, was cumbersome at times to calculate, then convert, to inches for practical … [Read more...]
- « Previous Page
- 1
- 2
- 3
- 4
- …
- 91
- Next Page »
