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Polarization Switching Device: Elevating Testing Efficiency with Motorized Automation
In antenna measurement and EMC testing, changing polarization orientation is a routine yet time-consuming task. Traditional methods often require manually disconnecting, rotating, and reconnecting the antenna — a process that introduces mechanical wear, alignment errors,...Read more -
Antenna Theory – Near Field and Far Field
Following the discussion of fundamental antenna parameters in the previous chapter, another important topic to consider is the near-field and far-field regions of an antenna. The radiation intensity measured close to the antenna differs from that measured at a distance. ...Read more -
Spiral Antenna: The Ideal Choice for Broadband Circular Polarization – From Theory to Applications
A Spiral Antenna is a typical example of a wire antenna, characterized by its spiral-shaped structure. It is a broadband antenna suitable for VHF and UHF bands. The helical antenna operates over a frequency range of approximately 30 MHz to 3 GHz, primarily covering the V...Read more -
Antenna Theory – Basic Parameters
This chapter introduces the fundamental parameters of wireless communication, aiming to provide a better understanding of the role of antennas in communication systems. Wireless communication is carried out in the form of electromagnetic waves, making it essential to und...Read more -
The Planar Spiral Antenna: When Bandwidth Really Matters
Ask any antenna engineer about wideband performance, and chances are planar spiral antennas will come up early in the conversation. These flat, circular structures—with arms that curve outward like a fingerprint or a galaxy—have been solving bandwidth problems since the ...Read more -
The Biconical Antenna: A Workhorse for Broadband Omnidirectional Applications
If you've ever stepped into an EMC test lab or worked on wideband monitoring systems, chances are you've encountered a biconical antenna. At first glance, its symmetrical, bow-tie-like shape stands out—two conical elements facing each other, fed at the center. But beyond...Read more -
Understanding Circular Polarization Horn Antennas: Principles, Advantages, and Applications
A Circular Polarization Horn Antenna is a specialized type of microwave antenna designed to radiate or receive electromagnetic waves with circular polarization. Unlike linear polarization, where the electric field oscillates in a single plane, circular polarization featu...Read more -
The Ultimate Guide to Antennas: How Antennas Work (Part 2)
Continuing from the previous discussion, although antennas come in a wide variety of shapes and forms, they can be broadly categorized based on similarities.By wavelength: medium-wave antennas, short-wave antennas, ultra-short-wave antennas, microwave antennas...By perfo...Read more -
The Ultimate Guide to Antennas: How Antennas Work
Antennas are a very common communication device in our lives. However, most people don't truly understand them, perhaps only knowing that they are used to transmit and receive signals.Incidentally, since the Russian scientist Popov successfully invented the antenna in 18...Read more -
AESA vs PESA: How Modern Antenna Designs Are Revolutionizing Radar Systems
The evolution from Passive Electronically Scanned Array (PESA) to Active Electronically Scanned Array (AESA) represents the most significant advancement in modern radar technology. While both systems utilize electronic beam steering, their fundamental architectures diffe...Read more -
Is 5G Microwaves or Radio Waves?
A common question in wireless communication is whether 5G operates using microwaves or radio waves. The answer is: 5G utilizes both, as microwaves are a subset of radio waves. Radio waves encompass a broad spectrum of electromagnetic frequencies, ranging from 3 kHz to 30...Read more -
RFMiso product recommendation——Ka-band Dual-polarized Planar Phased Array Antenna
A phased array antenna is an advanced antenna system that enables electronic beam scanning (without mechanical rotation) by controlling the phase differences of signals transmitted/received by multiple radiating elements. Its core structure consists of a large number of ...Read more
