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Slot Antenna: Working Principle, Babinet’s Principle, Radiation Pattern and Applications
A slot antenna is a type of aperture antenna formed by creating one or more openings in a conductive surface, such as a metal plate, cavity, or waveguide wall. When electromagnetic fields excite the slot, the opening becomes a radiating element and couples energy from th...Read more -
Horn Antenna: Working Principle, Types, Radiation Characteristics and Applications
Horn antennas are among the most widely used directional antennas in microwave and millimeter-wave engineering. Their simple mechanical structure, predictable radiation characteristics, relatively low reflection, and ability to achieve moderate to high gain make them val...Read more -
Aperture Antenna: Working Principle, Types and Applications
Aperture antennas are an important class of antennas widely used in microwave, millimeter-wave, radar, communication, and antenna measurement systems. Unlike wire antennas, which radiate primarily through currents flowing along conductive elements, aperture antennas radi...Read more -
Helical Antenna: Working Principle, Radiation Modes, Polarization and Applications
What Is a Helical Antenna? A helical antenna, also known as a helix antenna, is a wire antenna formed by winding a conductive wire or tube into a three-dimensional helix. One end of the helix is normally connected to the center conductor of the feed line, while the outer...Read more -
Loop Antenna: Types, Working Principle, Radiation Pattern and Applications
What Is a Loop Antenna? A loop antenna is formed by arranging one or more conductive elements into a closed path and feeding the structure with an RF signal. The loop may be circular, square, rectangular, triangular, elliptical, or designed in another shape to meet speci...Read more -
Rhombic Antenna: Structure, Working Principle, Radiation Pattern and Applications
What Is a Rhombic Antenna? A rhombic antenna is a directional wire antenna formed by four conductive elements arranged in a diamond-shaped structure. It can be viewed as two V antennas connected end to end, with one acute vertex used as the feed point and the opposite ve...Read more -
Antenna Theory: How Does an Inverted V Antenna Work?
What Is an Inverted V Antenna? An inverted V antenna is a practical variation of the center-fed dipole antenna. Instead of arranging the two radiating elements in a straight horizontal line, the feed point is raised to the highest position while the two antenna arms slop...Read more -
Antenna Theory: How Does a V Antenna Work?
What Is a V Antenna? A V antenna is a directional wire antenna formed by two conductive elements extending outward from a common feed point. When viewed from above, the two antenna legs form a clear V-shaped structure. The V antenna can be regarded as an improved arrange...Read more -
Long Wire Antenna Theory: Types, Working Principles and RF Testing Applications
In antenna theory, the relationship between antenna length and operating wavelength is one of the most important factors that affects radiation performance. A long wire antenna is a typical example. Unlike a short dipole or half-wave dipole, a long wire antenna usually h...Read more -
Antenna Theory: What Is a Short Dipole Antenna?
A short dipole antenna is one of the basic models used in antenna theory. It is a simple linear wire antenna whose total length is much smaller than the wavelength of the operating signal. Although the structure looks very simple, the short dipole is an important referen...Read more -
Antenna Theory: Understanding the Full-Wave Dipole Antenna
What Is a Full-Wave Dipole Antenna? A full-wave dipole antenna is a linear dipole antenna whose total conductor length is approximately equal to one wavelength at the operating frequency. In other words, if the wavelength is represented by λ, the overall length of the di...Read more -
Antenna Theory – Half-Wave Folded Dipole
A folded dipole is an antenna consisting of two parallel conductors connected at both ends, forming a closed loop‑shaped structure, with the feed point at the center. The total length of the antenna is half a wavelength, which is why it is also called a half‑wave folded ...Read more
