Fabriquer Antenne Patch Wifi

  1. Fabriquer Antenne Patch Wifi Extender
  2. Fabriquer Antenne Patch Wifi Dongle

Helix Antenna vs Patch Antenna-Difference between helix and patch antenna types

This page on Helix Antenna vs Patch Antenna describes difference between Helix Antenna and Patch Antenna.The useful difference between various terms are mentioned here.

Helix and Patch are two widely used antennas for GPS applications. We will understand basics of these antenna types and mention some of the usefuldifferences between them. In some designs such as on rooftop patch antennas are used whilesome applications use helix type of antenna such as satellite signal reception.Refer types of antenna page which covers different types of antennas.

WIFI Antenna Hack!: Turn your standard WIFI antenna into one just like the $30 range extender antennas for about 5 cents! Follow these easy steps, and then check out the video if you need extra clarification. Digg if you like my very first Instructable. Collect your materials and tools. To build this directional antenna, you will need an N-Female chassis mount connector, four #6x1/4' nuts and bolts, 1-1/4' (32 mm) copper wire, pigtail patch cable, and an empty aluminum can. This rectangular microstrip patch antenna is designed for wireless communication application that works at 2.4 GHz with gain 11 dB for outdoor place. It also has a wide angle of beam in its radiation pattern. The results obtain that microstrip patch antenna can be used as client antenna in computer and workable antenna for wireless fidelity.

Patch Antenna

This antenna type can demonstrate very high gain when they are installed on top side oflarge ground plane. Ceramic type of patch antennas can be made with smaller size and hence are very popular.Their dimensions will range from 10x10 mm2 to 25x25 mm2.

Figure-1 depicts radiation pattern of Patch Antenna.Patch antennas with smaller ground planes will have certain back-lobe in the radiation pattern.This makes patch antennas susceptible to radiation from the backside of the antenna.

Figure-1 also depicts best placement of patch in this type of antenna.This results into best antenna performance and good performance.

Following points are considered in the design of patch antennas.
• No components should be mounted near to the patch.
• Maintain sufficient minimum distance between housing of device and antenna.
• Signal line paths are avoided near or under the antenna.
Refer article on microstrip based patch antenna design.

Helix Antenna

The helix antennas are designed with or without the use of ground plane.

Figure-2 depicts radiation pattern of Helix Antenna without ground plane.The shape of radiation pattern is omni-directional as shown.Helix usually do not need ground planes.However, ground plane can improve the performance significantly.If used, ground plabes should be kept at minimum distance from theradiation portion of the helix antenna.

Helix antenna is used either internal to the device or used as external free space antenna.

Fabriquer antenne patch wifi dongle

• Comparable gain is achieved with less size of patch antenna in comparison to helix antenna(of large volume).
• Helix antenna demonstrates low sensitivity compare to patch antenna of the same size.

Following table compares advantages and disadvantages of Helix Antennavs Patch Antenna types.


Advantages/
Disadvantages
Helix AntennaPatch Antenna
Advantages• Omnidirectional
• Robust
• High Gain
• Low cost
• Large variety of sizes are available
Disadvantages• Cost
• Space requirements
• Less isolation between between feed and antenna when compared to helix antenna

Fabriquer Antenne Patch Wifi Extender

Antenna related links

What is Difference between

difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile

RF and Wireless Terminologies


Share this page

Translate this page

Helix Antenna vs Patch Antenna-Difference between helix and patch antenna types

This page on Helix Antenna vs Patch Antenna describes difference between Helix Antenna and Patch Antenna.The useful difference between various terms are mentioned here.

Helix and Patch are two widely used antennas for GPS applications. We will understand basics of these antenna types and mention some of the usefuldifferences between them. In some designs such as on rooftop patch antennas are used whilesome applications use helix type of antenna such as satellite signal reception.Refer types of antenna page which covers different types of antennas.

Patch Antenna

This antenna type can demonstrate very high gain when they are installed on top side oflarge ground plane. Ceramic type of patch antennas can be made with smaller size and hence are very popular.Their dimensions will range from 10x10 mm2 to 25x25 mm2.

Figure-1 depicts radiation pattern of Patch Antenna.Patch antennas with smaller ground planes will have certain back-lobe in the radiation pattern.This makes patch antennas susceptible to radiation from the backside of the antenna.

Figure-1 also depicts best placement of patch in this type of antenna.This results into best antenna performance and good performance.

Following points are considered in the design of patch antennas.
• No components should be mounted near to the patch.
• Maintain sufficient minimum distance between housing of device and antenna.
• Signal line paths are avoided near or under the antenna.
Refer article on microstrip based patch antenna design.

Helix Antenna

The helix antennas are designed with or without the use of ground plane.

Figure-2 depicts radiation pattern of Helix Antenna without ground plane.The shape of radiation pattern is omni-directional as shown.Helix usually do not need ground planes.However, ground plane can improve the performance significantly.If used, ground plabes should be kept at minimum distance from theradiation portion of the helix antenna.

Helix antenna is used either internal to the device or used as external free space antenna.

• Comparable gain is achieved with less size of patch antenna in comparison to helix antenna(of large volume).
• Helix antenna demonstrates low sensitivity compare to patch antenna of the same size.

Following table compares advantages and disadvantages of Helix Antennavs Patch Antenna types.


Fabriquer Antenne Patch Wifi Dongle

Advantages/
Disadvantages
Helix AntennaPatch Antenna
Advantages• Omnidirectional
• Robust
• High Gain
• Low cost
• Large variety of sizes are available
Disadvantages• Cost
• Space requirements
• Less isolation between between feed and antenna when compared to helix antenna

Antenna related links

What is Difference between

difference between FDM and OFDM
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
Difference between 802.11 standards viz.11-a,11-b,11-g and 11-n
OFDM vs OFDMA
CDMA vs GSM
Bluetooth vs zigbee
Fixed wimax vs mobile

RF and Wireless Terminologies


Fabriquer antenne patch wifi extenders
Share this page

Translate this page
Comments are closed.