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UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[Details]
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1 Introduction
The multifunctional monitor is a commonly used clinical medical device. It can display the patient's electrocardiogram (ECG), respiration (RESP), blood oxygen saturation (SP...[Details]
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introduction
At the beginning of this century, Veit used Einthoven's galvanometer to record the electrical activity of the human pregnant uterus from the body surface for the first time. In 19...[Details]
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Medical and industrial applications often require isolation voltages of 2500Vac or higher for patient and equipment operator safety. The isolation barrier must not only transmit power to the sensin...[Details]
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Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
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This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
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Engineers who are new to wireless design and wireless product development need to master the basics of
RF measurement
. In many cases, this process is to enable engineers who have been engag...[Details]
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This article first briefly introduces the working principles of current mode and voltage mode and their respective advantages and disadvantages; then discusses the ideal voltage mode using output c...[Details]
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introduction
Mobile phones, MP3 players, hard disk players, digital cameras, PDAs and other devices are all controlled by navigation keys. Currently, the more popular navigation key contro...[Details]
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Broadband services supporting triple play voice, video and data are evolving for first mile customers (small businesses and homes). A key factor in this FTTx evolution is GPON (Gigabit Passive Opti...[Details]
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Demand Analysis
In an era of rapid information development, the process of electronicization of the financial system has also been greatly accelerated. As a platform that provides services 24 ...[Details]
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Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pres...[Details]
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Semiconductor devices used in high-end computing (advanced microprocessors) and consumer electronics (graphics and gaming chipsets) devices generally provide data rates up to 6.4Gbps through hig...[Details]
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This article will discuss a common problem in wireless mobile data reception.
Problems facing RF receivers
The common problem faced by RF receivers is that the same hardware must be used ...[Details]
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AD604 is a product of Analog Devices (AD). Compared with similar products, AD604 has the characteristics of ultra-low noise, high precision, continuously adjustable gain, and the decibel (dB...[Details]