wifi antenna technology

2.4 GHz 802.11b/g Wi-Fi Antennas - 5.8 GHz 802.11a Wi-Fi Antennas
Directional Antennas, High-Gain Antennas

When you need a high-gain 802.11 antenna, Xium has three types of technologically advanced antenna designs.
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- Multi-Waveguide Antenna Design

- Adjustible Low Frequency Multi-
Waveguide Antenna Design

- Adjustible High Frequency Multi-
Waveguide Antenna Design

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Advanced Antenna Solutions

High-Gain Multi-Directional Spilateral^™ Antenna

Our heavy duty mast mounting kit (shown) allows easy connection of a wide variety of high-gain, highly directional Wi-Fi antennas for 802.11b, 802.11g, 802.11b/g, and 802.11a antenna design options. Power output is rated at 200 Watts and the units have wind survival ratings of up to 175 miles per hour. The unit shown on the right is a patented "Spilateral" design with a 4x 90° degree spiral-lateral-vertical beamwidth and a 360-degree multi-horizontal beamwidth. No field tuning is necessary; just mount it, and you're ready to transmit and receive with up to a 32X increase in effective output power.

High-Gain Multi-Directional Low Frequency Trilateral^™ Antenna

A low frequency antenna designed to fill large areas with uniform RF coverage. This Trilateral antenna provides a reliable interface to handheld transmitters, desktop systems and other network nodes, without concern for the orientation of the antennas. The triangular polarization minimizes losses typically associated with cross-polarization. Mounted on the wall (indoors or outdoor antenna use) or on a ceiling (perhaps in an auditorium) the 360-degree signal propagation "Trilateral" focuses the RF power where you need it and increases the transmitters effective output power.

This specially patented, low profile Trilateral Wi-Fi antenna doubles the transmit power (relative to the output power of the access point or mesh router) and spreads the signal out (see graph to the right), making it ideal for a ceiling-mount application. The plenum-rated access point or hotspot controller is concealed above the visible ceiling. This antenna is available for many frequency bands!

High-Gain Multi-Directional High Frequency Quadlateral^™ Antenna

A high frequency antenna designed to fill large areas with uniform RF coverage. This Quadlateral antenna provides a reliable interface most high-frequency transmitters and receivers, desktop systems and other network nodes, without concern for the orientation of the antennas. The Quad-angular polarization minimizes losses typically associated with cross-polarization. Mounted on a roof or tower for large coverage areas, the 360-degree signal propagation "Quadlateral" focuses the RF power where you need it and increases the transmitters/receivers/transceivers effective output power.

This specially patented, low profile Quadlateral Wi-Fi antenna multiplies 4x the transmit power (relative to the output power of the access point or mesh router) and spreads the signal out (see graph to the right), making it ideal many high-frequency applications.

Many Options to Choose From!

Xium offers many different antennas for Wi-Fi and other communication applications. We can design your system our specially designed and patented antennas, and we can meet every requirement for environmental specification, quality and performance.

Antenna Pattern Polar Coordinate Graphs

An antenna both transmits and receives radio frequency (RF) energy. The physical construction of an antenna determines how the energy is "beamed out" and a law of physics (called the "Law of Reciprocity") causes an antenna to receive signals with the same ability as it can send signals. This means that a high-gain or directional antenna both transmits and receives with the same increased gain or directionality.

Understanding the Antenna Pattern Graphs
The graphs show signal field strength from a "side view" (called the Elevation view, or "E-Graph"). You're standing in a big room looking across the room at the antenna. This is as opposed to the "top view" (called an Azimuth view or Horizontal view or H-Graph). All the graphs are E-Graphs, no H-Graphs are shown. If you're an electronics engineer then you'll also appreciate that "E" and "H" have significance beyond the memory aid of Elevation and Horizontal.

Controlled or Uncontrolled Environments?

Conventional
Antenna Networks

		vs.
	The Spilateral technology distributes and receives signals laterally 360° for stablized antenna characteristics.		Antenna Waveguide characteristics compete with obstructions (i.e. trees, buildings, homes, etc.)

	Spilateral Technology	Omni-Directional Antenna
	The Spilateral antenna design produces high, omni-directional gain, due to its electro-magnetic energy core (EEC) technology. Spilateral is specifically designed for low to ultra high frequency applications. By having four 90° degree, spiral-lateral planes, the EEC generates an additional passive gain reflecting signals laterally, causing a positive reflective feedback of signals.	The RF energy spreads out equally in all directions, forming a doughnut shape around the antenna. This is generally consistent with what a typical 1/2-wave dipole on an 802.11b or 802.11g WLAN access point might produce.
	Trilateral Technology	High-Gain Omni-Directional Antenna
	The Trilateral antenna design produces high, omni-directional gain, due to its electro-magnetic energy core (EEC) technology. Trilateral is specifically designed for very high to ultra high frequency applications. By having four 90° degree, tri-lateral planes, the EEC generates less passive gain, yet more gain from the Tri-lateral's reflection points. An additional LC circuit is ideal for specific frequency tuning.	The antenna has been constructed so as to radiate power in a "flatter" doughnut shape. Since the same input power is now being radiated in a "flatter" volume, the power per unit area at any given point on the plane perpendicular to the antenna is increased. This graph shows a 2dB gain relative to the omni-directional design above.
	Quadlateral Technology	Directional Antenna
	The Quadlateral antenna design produces directional, omni-directional gain, due to its electro-magnetic energy core (EEC) technology. Quadlateral is specifically designed for ultra-high frequency applications. By having four 90° degree, tri-lateral planes, the EEC generates less passive gain, yet more gain from the Tri-lateral's reflection points. An additional LC circuit is required for ideal frequency tuning.	A reflecting element has been placed to the left of the antenna's active radiating element. Signal energy that used to go out to the left now goes out to the right. The signal power per unit area on the plane perpendicular to the antenna has now been doubled to the right. The antenna is directional. It is, of course, "high gain" relative to an omni-directional antenna. The graph shows a 3dB gain relative to the original omni-directional design.
	Xium "X" Technology	High-Gain Directional Antenna
	Spilateral, Trilateral and Quadlateral are specifically designed for wireless analog and digital applications for audio and video computer-related product designs.	Now there is not only a reflecting element (as with the directional antenna) but the construction of the radiating element is such that the doughnut is "flattened". Both characteristics combine to make very high gain, directional antennas. The graph shows a 20dB gain relative to the original omni-directional design.

Send mail to webmaster@goxium.com with questions or comments about this web site. Copyright © 2006 Xium Corporation. All Rights Reserved. 04/28/2006

Send mail to webmaster@goxium.com with questions or comments about this web site.
Copyright © 2006 Xium Corporation. All Rights Reserved.
04/28/2006