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Energy conversion in radar antennas
In microwave circuits or systems, the entire circuit or system is often composed of many basic microwave devices such as filters, couplers, power dividers, etc. It is hoped that through these devices, it is possible to efficiently transmit signal power from one point to ...Read more -
Waveguide matching
How to achieve impedance matching of waveguides? From the transmission line theory in microstrip antenna theory, we know that appropriate series or parallel transmission lines can be selected to achieve impedance matching between transmission lines or between transmissio...Read more -
Trihedral Corner Reflector: Improved Reflection and Transmission of Communication Signals
A trihedral reflector, also known as a corner reflector or triangular reflector, is a passively target device commonly used in antennas and radar systems. It consists of three planar reflectors forming a closed triangular structure. When an electromagnetic wave hits a tr...Read more -
Effective aperture of antenna
A useful parameter calculating the receive power of an antenna is the effective area or effective aperture. Assume that a plane wave with the same polarization as the receive antenna is incident upon the antenna. Further assume that the wave is travelling towards the ant...Read more -
Slotted Waveguide Antennas – Design Principles
Figure 1 shows a common slotted waveguide diagram, which has a long and narrow waveguide structure with a slot in the middle. This slot can be used to transmit electromagnetic waves. figure 1. Geometry of the most common slotted wavegu...Read more -
Antenna Measurements
Antenna measurement is the process of quantitatively evaluating and analyzing antenna performance and characteristics. By using special test equipment and measurement methods, we measure the gain, radiation pattern, standing wave ratio, frequency response and other param...Read more -
The working principle and advantages of logarithmic periodic antennas
The log-periodic antenna is a wide-band antenna whose working principle is based on resonance and log-periodic structure. This article will also introduce you to log-periodic antennas from three aspects: the history, working principle and advantages of log-periodic anten...Read more -
Common types of antenna connectors and their characteristics
The antenna connector is an electronic connector used to connect radio frequency equipment and cables. Its main function is to transmit high-frequency signals. The connector has excellent impedance matching characteristics, which ensures that signal reflection and loss a...Read more -
Polarization of plane waves
Polarization is one of the basic characteristics of antennas. We first need to understand the polarization of plane waves. We can then discuss the main types of antenna polarization. linear polarization We will begin to understand the polarization o...Read more -
Understand the working principles and applications of waveguide to coaxial converters
A coaxial adapter waveguide is a device used to connect different types of waveguide transmission lines. It allows conversion between coaxial cables and waveguides for signal transmission and connection in different wireless communication systems, radar systems, microwav...Read more -
Basic knowledge of microwave coaxial lines
Coaxial cable is used to transmit RF energy from one port or component to other ports/parts of the system. Standard coaxial cable is used as microwave coaxial line. This form of wire usually has two conductors in a cylindrical shape around a common axis. They are all sep...Read more -
RF frequency converter design-RF Up converter,RF Down converter
This article describes RF converter design, along with block diagrams, describing RF upconverter design and RF downconverter design. It mentions the frequency components used in this C-band frequency converter. The design is carried out on a microstrip board using discre...Read more
