Introduction:Everyone knows that impedance should be continuous. However, as Luo Yonghao said, “In life, there are always times when you step in something unpleasant,” PCB design also has its moments of impedance discontinuity. What should we do? Characteristic Impedance Characteristic Impedance: Also known as “Feature Impedance”, it is not a DC resistance, but a concept … Read more
The Internet of Things (IoT) continues to transform various industries, making design decisions around wireless connectivity components increasingly complex. Engineers often face a dilemma when selecting components for their IoT applications, having to choose between IC and wireless modules. Both options have unique advantages and trade-offs that impact design complexity, cost, scalability, and time to … Read more
[Fundamentals] 3W Principle Power Supply Management and Plane Segmentation About Dead Copper (PCB Islands) Where is the Reference Plane for Routing? How to Quickly Estimate PCB Trace Resistance: Square Statistics [PCB Fabrication and Materials] Basic Knowledge of PCB Fabrication Classification of Substrate Materials for Printed Circuit Boards Classification and Selection of PCB Materials Differences in … Read more
By utilizing wireless connectivity, designers can transform non-smart products into smart integrated devices for the Internet of Things (IoT), enabling data transmission to the cloud for artificial intelligence (AI)-based analysis, while allowing devices to receive over-the-air (OTA) commands, firmware updates, and security enhancements. However, adding a wireless link to a product is not a simple … Read more
Bluetooth has always been a standard feature for smart devices, whether it be smartphones, laptops, or tablets. With the development of mobile internet, a large number of smart wearable devices have emerged, and the development of these applications requires not only mobile software support but also support from wireless sensing technology. Bluetooth remains the preferred … Read more
Block Ceramic Antennas and LTCC Process Antennas Block ceramic antennas are produced by sintering a solid ceramic body at high temperatures, followed by printing the metal part of the antenna on the surface of the ceramic block. Multi-layer antennas are fabricated using a low-temperature co-firing method (LTCC), where multiple layers of ceramic are stacked and … Read more
With the trend of the Internet of Things, wireless communication modules have become an indispensable part of various electronic devices, and the communication quality of the modules largely depends on the rationality of the antenna design. This article introduces how to choose the appropriate antenna and maximize its performance. Reference for this article: http://www.21ic.com/app/rf/201803/755820.htm With … Read more
The communication distance of wireless modules is an important indicator, and how to maximize effective communication distance has always been a puzzling question for many. This article provides some explanations based on debugging experience and methods for selecting and using antennas, hoping to assist engineers in quickly debugging communication distances. 1. Types of Antennas With … Read more