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RM-PSA1840-5 Planar Spiral Antenna for 18–40 GHz Broadband Systems
A Planar Spiral Antenna is a high-performance broadband antenna widely used in modern RF and microwave systems. Thanks to its compact planar structure, wide frequency coverage, circular polarization capability, and stable radiation performance, the Planar Spiral Antenna ...Read more -
Antenna Theory – Beams and Polarization
This chapter discusses the parameters of antenna radiation beams, which help us understand beam specifications. Beam Area According to the standard definition: “If the radiation intensity P(θ,ϕ) remains at its maximum value ove...Read more -
RM-CGHA28-15 Linear-Polarized Corrugated Horn Antenna for 26.5–40 GHz Applications
The RM-CGHA28-15 is a high-performance linear-polarized corrugated horn antenna designed for wideband millimeter-wave applications from 26.5 GHz to 40 GHz. With a typical gain of 15 dBi and a typical VSWR of 1.2:1, this antenna provides stable signal transmission, excell...Read more -
Antenna Theory — Isotropic Radiation
In the previous chapter, we discussed radiation patterns. To better analyze antenna radiation, a reference point is required. The radiation of an isotropic antenna fulfills this role. Definition Isotropic radiation refers to radiation from a point sourc...Read more -
High-Gain Circularly Polarized Horn Antenna Covering 6–18 GHz – 19 dBi Typical
Combining the inherent interference‑rejection of circular polarization with the high gain and low VSWR of a horn antenna, the circularly polarized horn is a key component in satellite communications, radar testing, and EMC measurements. Key Advantages •...Read more -
Antenna Theory – Radiation Patterns
Radiation is a term that describes the intensity of the electromagnetic waves transmitted or received by an antenna. In any antenna illustration, the diagram depicting the antenna's radiation characteristics is known as its radiation pattern. By observing the radiation p...Read more -
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
