Antennas Are Everywhere

Antennas and antenna systems are the eyes and ears of wireless communication systems. No matter how simple or complex, these wireless systems cannot operate efficiently unless they utilize transmitting and receiving elements/antennas to radiate and receive the waves that efficiently carry the information.

In fact, some of the services and performances of wireless communication may depend on and be limited by antenna designs, which will require our imagination and vision to push the outer limits of physics laws. For example, handheld mobile units, which in 2020 numbered nearly 40 billion subscribers, are ubiquitous from the smallest rural village to the largest urban city and provide numerous services, such as voice, video, email, news, weather, stock quotes, GPS, TV, satellite, wireless LAN, Bluetooth, WiFi, WiMax, Radio Frequency ID (RFID), and so on. 

To integrate all these services into a single unit and provide them reliably and efficiently, we must develop broadband antenna designs to accommodate these demands. At the same time, provide esthetic visualization of the devices. Using single antenna elements for each of these services will not “cut the mustard.” Therefore we are faced with unique challenges, and we must respond.

Why RFecho

To meet the demands of this rapidly evolving technology, RFecho provides leadership towards these challenges, as seen by some of our visionary contributors. RFecho microwave antenna covers a wide range of applications from the fundamentals of antennas to antennas for mobile wireless communications and medical applications, EMC, automobile, artificial intelligence, high power handling. We have

Horn Antennas

Others

Besides, RFecho antennas are widely used in modern and contemporary technologies such as metamaterials, micro-electromechanical systems (MEMS), frequency selective surfaces (FSS), radar cross-section (RCS) and their applications to antennas.

The most important parameters and definitions for antennas

pattern and polarization

To describe the performance of an antenna, definitions of various parameters are necessary. They are:

Radiation Pattern

An antenna radiation pattern is defined as “a mathematical function or a graphical representation of the antenna’s radiation properties as a function of space coordinates. The radiation pattern is determined in the far-field region, mostly. Radiation properties include power flux density, radiation intensity, field strength, directivity, phase, or polarization.

-26 dBi to 1 dBi Gain,20 MHz to 1000 MHz, SMA (F) or N, Biconical Antenna
-26 dBi to 1 dBi Gain,20 MHz to 1000 MHz, SMA (F) or N, Biconical Antenna

(a) Field pattern (in linear scale)

-26 dBi to 1 dBi Gain,20 MHz to 1000 MHz, SMA (F) or N, Biconical Antenna

(b) Power pattern (in linear scale)

-26 dBi to 1 dBi Gain,20 MHz to 1000 MHz, SMA (F) or N, Biconical Antenna

(c) Power pattern (in dB)

Radiation Pattern

An antenna radiation pattern is defined as “a mathematical function or a graphical representation of the antenna’s radiation properties as a function of space coordinates. The radiation pattern is determined in the far-field region, mostly. Radiation properties include power flux density, radiation intensity, field strength, directivity, phase, or polarization.

-26 dBi to 1 dBi Gain,20 MHz to 1000 MHz, SMA (F) or N, Biconical Antenna
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