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Yagi versus Flat Panel Antennas

Flat panel antennas are comparable to Yagi antennas in usage. However, they are superior to Yagi antennas in many aspects, especially in durability and reliability, specifically in regard to withstanding higher wind loads and snow and ice buildup. Furthermore, they are optically pleasing and less obtrusive. Flat panel antennas may easily be integrated with enclosures, thus offering a complete CPE package (Enclosure with mounting kit and antenna, containing your choice of radio solution).

MTI Wireless Edge offers the broadest range of flat panel antennas in the industry ranging from 700 MHz up to 10.5 GHz (including the popular 2.4, 3.5 and 5 GHz frequency bands) and matching enclosures.


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I know the Frequency of my transmission/reception. I know which Antenna Gain I would like to get.
Are there any other parameters I should consider?

While the Frequency range e.g. 5.15-5.875 GHz and the Gain e.g. 23 dBi are the most well known parameters in antennas, there are a lot of additional parameters which should be taken into account when selecting your antenna.


Those parameters include:

·         Frequency Band [GHz]

·         Gain [dBi]

·         Polarization [V/H/DP/DS/…]

·         Port to Port Isolation [dB]

·         Beam Width [Degree, AZ/EL]

·         Sidelobe Level [dB]

·         Cross Polarization Level [dB]

·         Front to Back Ratio [dB]

·         VSWR (50 Ohm)

·         Maximum Input Power [Watt]

·         ETSI standard compliant

·          and more …


The Antenna is the most critical component in wireless communications. The above Antenna parameters will directly influence the

·         Distance of transmission

·         Throughput achievable

·         Quality of Service (QOS)

·         Interference immunity (S/N, S/I)

·         Frequency re-use

·         Reliability

·          Survivability

of any wireless system.

MTI Wireless Edge offers the broadest selection of Base Station Antennas (BTS), Subscriber Antennas (CPE) and Omnidirectional Antennas in the industry. MTI covers all sub-11 GHz frequency bands, including the popular 2.4, 3.5 and 5 GHz frequency bands. MTI Antennas are designed and manufactured adhering to the strictest industry standards and to exact specifications. MTI has over 40 years of proven experience and performance in antenna design for military, airborne and marine antennas, as well as, antennas for commercial broadband wireless access (BWA) applications.


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Which Antenna should I use, Vertical or Horizontal Polarization?

In general, vertical polarization is much more prevalent (especially in omnidirectional antennas). However, lately we see growing demand for Dual Polarization antennas (V & H), in particular for 802.11/n applications. MTI offers vertical and horizontal polarized antennas, as well as Dual Polarization (DP) and Dual Slant (± 45°) antennas. Some antennas may be installed at a shifted angle to turn vertical polarized antenna to horizontal or DP to DS applications.

MTI Wireless Edge offers a broad selection of Single Polarization Antennas (Vertical or Horizontal), Dual Polarization Antennas (Vertical and Horizontal), Dual Slant Antennas (± 45 °) and other Antennas.

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Do you have a solution for mounting the antenna at 45° (diamond style)?

Yes, we have solutions to mount antennas at 45° (diamond style).

1. Our 1 foot enclosure may be mounted either Vertical/Horizontal or Dual Slant (± 45 °).

2. For other antennas or the ½ f enclosure, we offer a Rotating Plate for just this purpose e.g.






45 deg rotating plate


For MT-120018/A


45 deg rotating plate


For MT-120018

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What is the advantage of using Dual-Slant Antenna instead of regular Dual-Polarization Antenna?

Your question is a good question. You will probably get different answers from different people.

Here is my take.

Dual Polarization Antennas (DP) are antennas which use the Vertical and the Horizontal plane (+90°, -90°).

Dual Slant Antennas (DS) are very similar but they use the +45° and -45° planes.

Basically, while designing an antenna you have to define whether you want it to be a DP or DS antenna (since the internal design is different).

However, many antennas (mainly CPE – Subscriber Antennas) may be easily converted in usage from DP to DS (or vise versa) by rotating the antenna by 45°.

DP antennas are widely used in Broadband Wireless Access (BWA) such as WiMAX, PtMP, Hyperlan, etc.

The DS design is preferred by people coming from cellular applications where this is the prevalent method.

Also, some people consider the DS design superior to DP in dense urban areas due to expected reflections etc.

MTI Wireless Edge offers a broad selection of Single Polarization Antennas (Vertical or Horizontal), Dual Polarization Antennas (Vertical and Horizontal), Dual Slant Antennas (± 45 °) and other Antennas.

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I am using your low cost Base Station Antenna. Can I expect better performance with your Null-Fill BTS?

Null Fill is a special technology which eliminates Nulls. Nulls are areas (usually between the main lobe and the following sidelobes) where the antenna gain is very low (or null). Near the nulls, reception is very low (or no reception at all). There is a special technology in which the Nulls are eliminated. This technology is called “Null-Filling” The Null Fill technology improves antenna coverage. With Null Filling, transmission and reception is improved over the whole area and more uniform.

Result of Null-Fill

     Null Fill technology eliminates “blank” areas.

     Results in improved coverage.

     Increases revenues.

     Better ROI (Return on Investment).

Therefore, using antennas with Null-Fill technology, the return on investment (ROI) is often measured in a few weeks only, due to the fact that your customers get reception in areas you could not otherwise reach and improved reception over the whole area. Furthermore, this allows you to reach more customers and eliminates cut-offs due to bad reception. This directly contributes to improved customer experience and increased revenues.

In the broad antenna portfolio MTI Wireless Edge also carries Base Station Antennas which are “Null-Fill” BTS.

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I need to install a Wireless Outdoor Solution, what should I look for?

There are quite a number of indoor solutions for WiFi (802.11/a/b/g/n) wireless communications. However, for outdoor solutions, the choice is limited.

If you need to bridge distances outside of your house, you need to look for a solution which offers protection against the elements (UV, dust, rain, snow, ice), as well as, effective, high gain antennas.

You will have to look for quality enclosures (housing, box) to mount your radio/router solution. Furthermore, you will need antennas which will allow you to get good and stable wireless connection.

MTI Wireless Edge offers aluminum die-cast enclosures which are approved to IP67 (dust and waterproof), as well as, a wide selection of directional and omnidirectional antennas in all sub-11 GHz frequency bands, including the popular 2.4, 3.5 and 5 GHz frequency bands.

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What does the IPsl rating stand for?

The IP rating defines the level of protection of equipment against ingress of dirt and water.

The degree of protection is expressed by “IP” followed by two numbers. The first number shows the level of protection against foreign bodies (dust, dirt) [s = solids]. The second number indicates the extent of protection against water [l = liquid]. In principle, the higher the s and l values, the better.

Most MTI Wireless Edge flat panel antennas and integrated antenna enclosures are IP67 (= completely dust proof and withstands temporary immersion under 1 meter of water).

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ATEX / EX Certification

The ATEX certification is an EU directive for equipment usage in explosive environments. There are different classification zones for different environments in which the systems will have to be deployed (Gas, oil rigs, pipeline etc.).

Typically, equipment which is CE marked may be sold anywhere in the EU without any further requirements.

Please be advised that all MTI antennas are CE certified.

An antenna, is a passive element, and contains no active components. Therefore, it is a simple apparatus, not subject to APEX certification. However, when attached or coupled to, either a transmitter or receiver, then it would form part of an electrical apparatus, and that apparatus would need certification if it was to be used in a hazardous area.

MTI Wireless Edge antennas are not active components. It’s worthwhile mentioning, that MTI antennas are deployed in different relevant environments such as off shore installations, along pipelines etc.

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We have purchased your high quality Base Station Antennas
What distance do you recommend that the Base Station Sector Antennas should be positioned away from each other on t

Please consider the following:

As a rule of thumb, the distance between antennas is minimum 3Lambda (preferably 5Lambda) so if 300MHz 1Lambda is 1meter then 3GHz is 10cm and 5GHz is 6cm then 3Labmda is 18cm and 5L is 30cm.

From here, you do the trigonometry.

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How do you calculate the Wind Load?

MTI antennas are designed according to ETSI EN 302 085v 1.1.2. Standard.

A typical antenna may withstand a Wind Speed of 220 km (Survival) and 160 km/h (Operation).

The Wind Load is calculated according to:

F  = q x A x C


F is the Force in Kg

q is the Wind Pressure in Kg/m2

A is the Area in m2

C is the Drag Coefficient.

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Can I paint the antenna radome and if yes, how?

Yes, contact us for more details
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