Exploring RF Propagation Mode
2023-12-08
In the realm of wireless communication, delving into the intricacies of RF operational characteristics is crucial. RF signals, as they propagate through a medium, adopt various propagation modes, encompassing absorption, reflection, scattering, refraction, diffraction, loss, gain, and multipath.
1.1 Absorption
Absorption refers to the phenomenon where RF signals, in the course of propagation, encounter materials that absorb their energy, leading to signal attenuation. Materials with higher density, such as brick walls and concrete, result in more severe signal attenuation. Additionally, considerations for human body absorption and user density are essential in the design phase.
1.2 Reflection
Reflection involves RF signals encountering a medium interface, changing their propagation direction, and returning to the original medium. In wireless local area networks, careful attention to RF signal reflection is crucial, as it can lead to multipath phenomena, impacting signal strength, quality, and even causing data loss.
1.3 Scattering
Scattering occurs when RF signals, during propagation, encounter rough or uneven objects, deviating from their original direction and dispersing.
1.4 Refraction
Refraction is the phenomenon where RF signals change their propagation direction when entering another medium at an oblique angle. Factors such as water vapor, air temperature, and air pressure significantly influence refraction.
1.5 Diffraction
Diffraction refers to RF signals bending and spreading when encountering obstacles. Diffraction may result in signal distortion.
1.6 Attenuation
Attenuation, also known as loss, signifies the reduction in signal amplitude or strength during RF signal propagation in cables or air. Diffraction may lead to signal distortion.
1.7 Gain
In contrast to loss, gain represents the increase in RF signal amplitude or signal enhancement.
1.8 Multipath
Multipath entails two or more signals arriving at the receiver simultaneously or with very short time gaps. The same signals traversing different paths combine at the receiver, amplifying or diminishing the signal.
In the realm of RF technology, our company, AmpliVisionS, specializes in developing high-performance RF power amplifiers that seamlessly align with the intricate characteristics discussed above.
■
RF Power Amplifier Datasheet Guide ——Common Terms & Abbreviations
RF power amplifier datasheets contain a wide range of technical terms and abbreviations. But understanding the numbers starts with understanding what they actually represent.
—
2026-09-18
■
RF Power Amplifier Datasheet Guide ——Common Terms & Abbreviations
RF power amplifier datasheets contain a wide range of technical terms and abbreviations. But understanding the numbers starts with understanding what they actually represent.
■
70W Rack-Mount RF Power Amplifier-AVBR2080U48
The AVBR2080U48 is a solid-state broadband RF power amplifier based on Class AB architecture and RF GaN technology. It is specified for operation from 2.0 to 8.0 GHz, with a typical Output P1dB of 43 dBm.
■
SWR vs. Return Loss — How Do You Interpret Them?
VSWR and Return Loss often appear together in RF specifications. What do these two parameters actually tell us, and how should we interpret their values?
■
Under UN Regulation No. 10 (07 series of amendments), the upper frequency limit for automotive radiated immunity testing has been extended from 2 GHz to 6 GHz, reflecting the growing integration of higher-frequency wireless and electronic technologies into modern vehicles.
■
4–8 GHz, Without Switching Amplifiers.
The AVBR4080H47 delivers 50W output power across the full 4–8 GHz frequency range, combining broadband coverage with high RF power in a single amplifier.
■
CW AMPLIFIER VS. PULSE AMPLIFIER
CW and pulse RF power amplifiers may have similar frequency ranges, but their power and thermal considerations can be quite different.
AmpliVisionS
Tell: +86(28)61892455
E-mail: info@amplivisions.com
Address: 611731, 555 Tianjiao Road, High-Tech (West) Zone, Chengdu City, P.R. China
The website and its content is copyright of AmpliVisionS. All rights reserved. Website:300.cn Privacy Policy
COOKIES
Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy
COOKIES
Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy
These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.
These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.
These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.
These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.