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What is radio frequency?
Radio Frequency (RF) technology is a wireless communication technology, mainly used in radio, communications, radar, remote control, wireless sensor networks and other fields. The principle of wireless radio frequency technology is based on the propagation and modulation...Read more -
Definition and common classification analysis of RFID antennas
Among wireless communication technologies, only the relationship between the wireless transceiver device and the antenna of the RFID system is the most special. In the RFID family, antennas and RFID are equally important ...Read more -
Horn antennas and dual polarized antennas: applications and areas of use
Horn antenna and dual polarized antenna are two types of antennas that are used in various fields due to their unique characteristics and functions. In this article, we will explore the characteristics of horn antennas and dual-polar...Read more -
What are the three different polarization modes of SAR?
1. What is SAR polarization? Polarization: H horizontal polarization; V vertical polarization, that is, the vibration direction of the electromagnetic field. When the satellite transmits a signal to the ground, the vibration direction of the radio wave used can be in man...Read more -
Basic parameters of antennas – beam efficiency and bandwidth
figure 1 1. Beam efficiency Another common parameter for evaluating the quality of transmitting and receiving antennas is beam efficiency. For the antenna with the main lobe in the z-axis direction as shown in Figure 1, be...Read more -
Introduction and classification of some common antennas
1. Introduction to Antennas An antenna is a transition structure between free space and a transmission line, as shown in Figure 1. The transmission line can be in the form of a coaxial line or a hollow tube (waveguide), which is used to transmit electromagnetic energy fr...Read more -
RFMISO Waveguide to Coaxial Adapter (RM-WCA19)
Waveguide to coaxial adapter is an important part of microwave antennas and RF components, and it plays a key role in ODM antennas. A waveguide to coaxial adapter is a device used to connect a waveguide to a coaxial cable, effectively transmitting microwave signals from ...Read more -
Antenna Review: A Review of Fractal Metasurfaces and Antenna Design
I. Introduction Fractals are mathematical objects that exhibit self-similar properties at different scales. This means that when you zoom in/out on a fractal shape, each of its parts looks very similar to the whole; that is, similar geometric patterns or structures repea...Read more -
Overview of Terahertz Antenna Technology 1
With the increasing popularity of wireless devices, data services have entered a new period of rapid development, also known as the explosive growth of data services. At present, a large number of applications are gradually migrating from computers to wireless devices su...Read more -
A review of rectenna design (Part 1)
1.Introduction Radio frequency (RF) energy harvesting (RFEH) and radiative wireless power transfer (WPT) have attracted great interest as methods to achieve battery-free sustainable wireless networks. Rectennas are the cornerstone of WPT and RFEH systems and have a signi...Read more -
A review of rectenna design (Part 2)
Antenna-Rectifier Co-design The characteristic of rectennas following the E-G topology in Figure 2 is that the antenna is directly matched to the rectifier, rather than the 50Ω standard, which requires minimizing or eliminating the matching circuit to power the rectifier...Read more -
A Review of Metamaterial Transmission Line Antennas
I. Introduction Metamaterials can be best described as artificially designed structures to produce certain electromagnetic properties that do not exist naturally. Metamaterials with negative permittivity and negative permeability are called left-handed metamaterials (LHM...Read more
