- Trained on our vast library of engineering resources.

Technical Articles

UIY Inc. has published these technical articles:

(RF, Microwave, and Wireless Components)
From this Article:
Lumped-parameter design and Distributed-parameter design are common methods of radio frequency circuit design. This article will introduce the characteristics and differences between the two briefly....
(RF, Microwave, and Wireless Components)
From this Article:
RF Circulators and Isolators are defined as RF Ferrite component, transfer RF signals by control of the ferrites. An RF signal experiences a low loss in the direction of arrow and high loss in reverse...
(RF, Microwave, and Wireless Components)
From this Article:
In the wireless mobile phone communication system, the main function of the combiner is to combine the input multi-band signals and output them to the same indoor distribution system. The combiner is...
(RF, Microwave, and Wireless Components)
From this Article:
The X-band belongs to the microwave frequency range. There are two versions of X-band: one refers to the radio wave band with a frequency of 8-12 GHz, and the other refers to the frequency range of...
(RF, Microwave, and Wireless Components)
From this Article:
When two signal frequencies F1 and F2 or multiple signal frequencies pass through the same remote RF transmission system at the same time, nonlinear frequency components are generated between the...
(RF, Microwave, and Wireless Components)
From this Article:
A Diplexer(duplexer) is a three-port passive radio frequency device that is a very common in communications, radar, and other sensing applications. Diplexer(duplexer) consists of two filters of...
(RF, Microwave, and Wireless Components)
From this Article:
As the 3GPP RAN conference announced the freezing of the 5G Release 17 (abbr.: R17) standard, it means that the 5G RedCap new technology standard for the medium and high-speed Internet of Things is...
(RF, Microwave, and Wireless Components)
From this Article:
There are many kinds of radio frequency connectors, in order to meet the needs of various frequencies and physical structures. People have designed a variety of connector types, with each type of...
(RF, Microwave, and Wireless Components)
From this Article:
The Smith chart is used for impedance matching between high frequency circuits. Impedance represents the resistance ability of a circuit to electricity and is a vector. The impedance value is a...
(RF, Microwave, and Wireless Components)
From this Article:
Massive MIMO (massive multiple-input multiple-output) is a key technology for 5G to improve system capacity and spectrum utilization. In the 5G era, Massive MIMO technology is widely used in base...
(RF, Microwave, and Wireless Components)
From this Article:
Long-Term Evolution (LTE) is a wireless broadcast communication standard for mobile devices and data ports based on GSM/EDGE and UMTS/HSPA technologies. The standard was developed by 3GPP (3rd...
(RF, Microwave, and Wireless Components)
From this Article:
The Ka-band with frequency range 26.5 ~ 40GHz, is part of the microwave band of the electromagnetic spectrum. In other words, the band is directly above the K-band. The Ka-band is also known as the...
(RF, Microwave, and Wireless Components)
From this Article:
In last article, we introduced the concept and common applications of the POI system. This article will focus on the POI system design and product features....
(RF, Microwave, and Wireless Components)
From this Article:
Please note the direction of isolator and circulator is very important. The reverse operation is not allowed, which would cause the malfunction or damage eventually....
(RF, Microwave, and Wireless Components)
From this Article:
According to statistics news on March 17th., AT&T, Verizon, T-Mobile US and other US companies have spent about a total of $117 billion (US dollars) in the purchase of 5G mid-band spectrum in the...
(RF, Microwave, and Wireless Components)
From this Article:
GalaxySpace successfully realized the first domestic V-band low-orbit satellite measurement and control on its 02 batches of satellites. This batch of satellites was successfully launched at the...
(RF, Microwave, and Wireless Components)
From this Article:
On May 6, Viavi, the Test and Measurement manufacturer announced its latest statistics on global 5G development. The data shows that China currently has 356 5G cities, the United States has 296 5G...
(RF, Microwave, and Wireless Components)
From this Article:
Millimeter wave (Abbr.: mmWave): The electromagnetic wave with a wavelength of 1 ~ 10 mm is called millimeter wave. It is in the overlapping wavelength range of microwave and far-infrared waves....
(RF, Microwave, and Wireless Components)
From this Article:
LoRa uses unlicensed sub-GHz wireless bands such as 433 MHz (Europe), 868 MHz (Europe) and 915 MHz (North America). It allows long distance transmission (10km+ in suburbs, up to 2km in urban areas)...
(RF, Microwave, and Wireless Components)
From this Article:
On March 17, Laure de La Raudière, president of the French Communications Regulator ARCEP, and two French government ministers (Agnès Pannier-Runacher, the Minister of Industry and...
(RF, Microwave, and Wireless Components)
From this Article:
1800(B3)Frequency(12 00~1950MHz), 4G important frequency. It is the anchor frequency bands for 5G NSA networking, bandwidth 25MHz....
(RF, Microwave, and Wireless Components)
From this Article:
The core of radar working principle is that the radar transmits electromagnetic wave of a certain frequency, receives the echo reflected by the target, and determines some states of the target...
(RF, Microwave, and Wireless Components)
From this Article:
China Mobile and China Radio and television officially signed a cooperation agreement on jointly building a 700MHz wireless network recently. China Mobile shall provide China Radio and Television a...
(RF, Microwave, and Wireless Components)
From this Article:
In the field of radio frequency and microwave, in addition to the transmission of wireless signals, most of the scenarios still need to use transmission lines for signal transmission. Among them,...
(RF, Microwave, and Wireless Components)
From this Article:
UIY Inc. specializes in RF and microwave passive components (RF isolator, circulator, attenuator, coaxial load, filter, etc.), integrating R &D, production, sales and service. The products are...
(RF, Microwave, and Wireless Components)
From this Article:
ITU defines frequency bands, which are used for satellite communications. UHF (Ultra High Frequency) or decimeter wave frequency band, the frequency range is 300MHz-3GHz. This frequency band...
(RF, Microwave, and Wireless Components)
From this Article:
The Surface Mount Isolator/Circulator is easy to install because it does not require complicated installation skills and wiring. All you have to do is to solder and install it on the board applied. So...
(RF, Microwave, and Wireless Components)
From this Article:
The Federal Communications Commission (FCC) announced as early as March 21, 2022 that it will launch the next phase of the 5G mid-band (2.5GHz band auction) on July 29 this year to expand the...
(RF, Microwave, and Wireless Components)
From this Article:
For amateur radio communications, VHF and UHF frequency bands are frequently and convenient used by radio enthusiasts. Whether at home, in a car, traveling, or at work, they are all accompanied by U/V...
(RF, Microwave, and Wireless Components)
From this Article:
The promise of 6G is "Internet of Everything, Bringing Intelligence to Life and Business Environment". AT&T Chief Technology Officer Andre Fuetsch recently outlined the vision of 6G wireless...
(RF, Microwave, and Wireless Components)
From this Article:
To make it easier for you to inquire about the current frequency usage of the public mobile communication system in China, the relevant frequency information that the Ministry of Industry and...
(RF, Microwave, and Wireless Components)
From this Article:
The Drop in isolator/circulator is usually installed on the circuit board, the following is the installation instruction...
(RF, Microwave, and Wireless Components)
From this Article:
In order to maintain the order of air waves and promote the development of the radio industry, the China Ministry of Industry and Information Technology has strengthened and regulated the...
(RF, Microwave, and Wireless Components)
From this Article:
The Summit is going to present an excellent performance on "Building Innovative Value Chain, Industrial Chain, Supply Chain and Value Chain, Promoting Digital Transformation and High-Quality...
(RF, Microwave, and Wireless Components)
From this Article:
At the 3GPP RAN#96 meeting held in Budapest, Hungary from June 6 to June 9, 3GPP officially defined the U6G (6GHz upper band, ie 6425-7125 MHz) as authorized spectrum, the frequency band number is...
(RF, Microwave, and Wireless Components)
From this Article:
Communication satellites can be classifieds into low earth orbit (LEO), medium earth orbit (MEO), and geostationary equatorial orbit (GEO) depending on the satellite’s orbit different heights to...
(RF, Microwave, and Wireless Components)
From this Article:
In order to increase the support and guarantee of radio spectrum resources in 5G, in furtherance of covering 5G signal coverage in the remote village area. Lately, China Unicom has obtained the...
(RF, Microwave, and Wireless Components)
From this Article:
China Broadcasting Network Corp (China Broadnet), the country’s fourth-largest telecom operator, officially launched commercial 5G network services in Southwest China’s Xizang Autonomous...
(RF, Microwave, and Wireless Components)
From this Article:
The 4th Western Microwave Conference & Exhibition as the most influential professional conference event in the Western China has been held in Chengdu during 1-2 November 2022. 100+ well-known brands...
(RF, Microwave, and Wireless Components)
From this Article:
Base Station, generally refers to the "public mobile communication base station", (abbr.: BS), the base station is used to provide signals to mobile phones. It usually consists of the following four...
(RF, Microwave, and Wireless Components)
From this Article:
In the last article, we introduced the SMA connector. Usually, when selecting RF connectors, the main factors are its frequency range, impedance, withstand voltage, VSWR, size, etc. Therefore,...
(RF, Microwave, and Wireless Components)
From this Article:
dB commonly known as decibel, deci can also indicate to one tenth. It is a unit of Power Gain, in the units of 10lg, it shows a relative value. 10 lg A/B is a unit for counting, it can be used in...
(RF, Microwave, and Wireless Components)
From this Article:
ISM(Industrial Scientific Medical) Band,is defined by ITU-R (ITU Radiocommunication Sector), refers to Industrial, Scientific and Medical,Therefore, as the name implies, the ISM frequency band is that...
(RF, Microwave, and Wireless Components)
From this Article:
A power amplifier is an electronic amplifier designed to increase the magnitude of the power of a given input signal. It is used to increase power of input signal to operate speaker, headphone and RF...
(RF, Microwave, and Wireless Components)
From this Article:
The power divider is a device that divides the power of one input signal into two or more outputs with equal or unequal energy, and can also conversely combine the energy of multiple signals into one...
(RF, Microwave, and Wireless Components)
From this Article:
Storage Conditions: This product must be stored in a cool and dry area. (Nitrogen Cabinet or Dry Cabinet) Operation: Operating with a Plastic or Bamboo Tweezer and Free-Dust Finger Cots on a clean...
(RF, Microwave, and Wireless Components)
From this Article:
MIIT (The Ministry of Industry and Information Technology) introduced on the 19th, July that a total of 1.854 million 5G base stations have been built and opened in China, of which nearly 300,000 new...
(RF, Microwave, and Wireless Components)
From this Article:
The RF circulator has its own circuit symbol to facilitate its representation on electronic circuit diagrams or schematics. The basic symbol consists of a circle and an arrow, indicating the direction...
(RF, Microwave, and Wireless Components)
From this Article:
The 14th China International Aviation & Aerospace Exhibition grand opening on Nov 8th in Zhuhai, Guangdong, as one of the five largest Aviation & Aerospace Exhibition in the world, China's Aviation &...
(RF, Microwave, and Wireless Components)
From this Article:
Since the development of RF circulators and isolators, there are a variety of installation methods to choose from, such as coaxial, drop-in, surface mount, microstrip, waveguide and so on. This...
(RF, Microwave, and Wireless Components)
From this Article:
Microwave is a transmission method of communication. For digital microwave communication technology, microwave is used as a way to complete the transmission of digital information. At the same time,...
(RF, Microwave, and Wireless Components)
From this Article:
On September 22, Beijing time, Comcast, the largest radio and television cable network operator in the United States, announced that it will build its own 5G wireless network, which will adopt two...
(RF, Microwave, and Wireless Components)
From this Article:
On June 15th, Google released a 5G private network solution portfolio (based on Google's distributed cloud edge products) on the 14th local time, and announced that it will "sell 5G private network...
(RF, Microwave, and Wireless Components)
From this Article:
The PDH system is to set high-precision clocks on each node of the digital communication network, and the signals of these clocks have a uniform standard rate. Although the accuracy of each clock is...
(RF, Microwave, and Wireless Components)
From this Article:
As introduced before, RF circulators are used in a variety of RF circuit design applications. Usually, they tend to be used at microwave frequencies, so they are often called microwave circulators....
(RF, Microwave, and Wireless Components)
From this Article:
China Manned Space announcement on the Mengtian Laboratory Module- at 9:32 (China Standard Time) on 3 November 2022, the rotation has been docking successfully. The Mengtian Laboratory Module starting...
(RF, Microwave, and Wireless Components)
From this Article:
China has accelerated infrastructure in 5G yet innovates the technology achieved to a new milestone. But apart from that, China has built the highest 5G base station on earth of the Mount Everest....
(RF, Microwave, and Wireless Components)
From this Article:
The directional coupler is a radio frequency device that extracts a small portion of the signal from the main channel of the wireless signal. Like the power divider, it belongs to the power...
(RF, Microwave, and Wireless Components)
From this Article:
TDD(Time Division Duplexing), one of the duplex technologies used in mobile communication technology. It is a technology that distinguishes wireless channels in time during the downlink operation of...
(RF, Microwave, and Wireless Components)
From this Article:
CBRS is the short for Citizens Broadband Radio Service. In 2015 the US Federal Communications Commission (FCC) approved the spectrum for CBRS (Citizens Broadband Radio Service). The bandwidth of the...
(RF, Microwave, and Wireless Components)
From this Article:
NTN has become a general term for any network involving non-ground flying objects. NTNs include Satellite Communication Networks, High Altitude Platform Systems (HAPS) and Air-to-ground networks, as...
(RF, Microwave, and Wireless Components)
From this Article:
Global Navigation Satellite System (GNSS), also known as global satellite navigation system, is a space-based radio navigation that can provide users with all-weather 3-dimensional coordinates, speed...
(RF, Microwave, and Wireless Components)
From this Article:
A low-power wide-area network (LPWAN or LPWA network) is a type of wireless telecommunication wide area network designed to allow long-range communications at a low bit rate among things (connected...
(RF, Microwave, and Wireless Components)
From this Article:
The 10th World Radar Expo 2023 is unveiled at Beijing Shougang Convention and Exhibition Center from April 13th to 15th. Themed by "Radar Integrates the World, Digital Intelligence Leads the Future",...
(RF, Microwave, and Wireless Components)
From this Article:
From March 22nd to 24th, 2023, under the guidance of the National 6G Technology Research and Development Promotion Working Group and the General Expert Group, the 2023 Global 6G Technology Conference...
(RF, Microwave, and Wireless Components)
From this Article:
RNSS (full name: Radio Navigation Satellite System) is a satellite radio navigation service in which users receive satellite radio navigation signals. RNSS completes the distance measurement...
(RF, Microwave, and Wireless Components)
From this Article:
A waveguide is a structure that guides waves, such as electromagnetic waves or sound, with minimal loss of energy by restricting the transmission of energy to one direction. Without the physical...
(RF, Microwave, and Wireless Components)
From this Article:
The 26th edition of the European Microwave Week (EuMW 2023) will come to Berlin to continue the annual series of highly successful microwave events that started back in 1998....
(RF, Microwave, and Wireless Components)
From this Article:
Recently, it was learned from the Shenzhen Bureau of Industry and Information Technology that as of now, the number of 5G base stations in Shenzhen has exceeded 70,000, and the number of 5G users has...
(RF, Microwave, and Wireless Components)
From this Article:
The Pros and Cons of LC filters, SAW/BAW filters, Helical/Spiral filters, Dielectric filters, and Cavity filters....
(RF, Microwave, and Wireless Components)
From this Article:
In last article, we introduced the basic concepts of filter. Today, we'd like to discuss further about the RF characteristics of the filter and how it defines its performances....
(RF, Microwave, and Wireless Components)
From this Article:
The RF filter is one of the essential key components in the radio frequency system. It is mainly used for frequency selection-letting the required frequency signal pass and reflecting the unwanted...
(RF, Microwave, and Wireless Components)
From this Article:
POI is the abbreviation of POINT OF INTERFACE, that is, a multi-system integration platform. It is mainly used for multi-band and multi-signal combination to achieve compatible coverage of...
(RF, Microwave, and Wireless Components)
From this Article:
First, let's introduce the main architecture of the wireless communication system, the core network (CN), the radio access network (RAN) and the user terminal (UE), such as a mobile phone. The 5G...
(RF, Microwave, and Wireless Components)
From this Article:
A coaxial attenuator is an energy-degrading RF/microwave component that contains resistive materials inside. In addition to the commonly used resistive fixed attenuators, there are also electronically...
(RF, Microwave, and Wireless Components)
From this Article:
DBS, or Direct Broadcasting Satellite Service, usually refers to the use of geosynchronous orbit satellites to radiate a certain area on the ground with high power, and transmit information such as TV...
(RF, Microwave, and Wireless Components)
From this Article:
IME/China 2023 will be held from August 9 to 11, 2023 at Shanghai World Expo Exhibition & Convention Center again. Inspired and supported by the success of the last show, the sponsor will extend...
(RF, Microwave, and Wireless Components)
From this Article:
The Q band is a range of frequencies contained in the microwave region of the electromagnetic spectrum. Common usage places this range between 33 and 50 GHz, but it may vary in term of sourcing. The Q...
(RF, Microwave, and Wireless Components)
From this Article:
The reverse power (or reflected power) is the sum of all the power output from the device to the capacitor plate or the inductor coil, including the effective power absorbed by the load and the...
(RF, Microwave, and Wireless Components)
From this Article:
Recently, the China Ministry of Industry and Information Technology issued a new version of the Regulations of the China on the Division of Radio Frequencies (MIIT File No. 62, hereinafter referred to...
(RF, Microwave, and Wireless Components)
From this Article:
On November 10, China Telecom released own-developed 5G satellite dual-mode mobile phone, Tianyi Platinum S9, was officially released at the 2023 Digital Technology Ecology Exhibition. Satellite...
(RF, Microwave, and Wireless Components)
From this Article:
The Structure of the RF Front-End RF front-ends can be divided into transmitter (TX) and receiver (RX) based on function. According to the components, it can be divided into power amplifiers (PA),...
(RF, Microwave, and Wireless Components)
From this Article:
Fixed Wireless Access (FWA) is an important 5G technology, providing new and more flexible wireless solutions for broadband for the last mile to the home....
(RF, Microwave, and Wireless Components)
From this Article:
1250MHz is one of the popular bands in frequency allocation, benefit from its capability of long signal transmission, low attenuation comparing to mmWave band etc....
(RF, Microwave, and Wireless Components)
From this Article:
A TX RX Multicoupler is a device used to couple the transmitter and receiver to an antenna. It transmit signals with high port-to-port isolation. A typical multicoupler consists of filters/duplexers,...
(RF, Microwave, and Wireless Components)
From this Article:
Before introduction of UHF CB, I would like to explain UHF PRS first. It is the abbreviation of Ultra High Frequency - Personal Radio Service, a short distance, unlicensed, two-way voice radio service...