Wide Band Batwing Dual

[Admin 2546]

This is an article edited by the user "com666", for which, I would like to thank them....!!!

 

The range of mobile communications covers a wide frequency band. The bands LTE800, LTE900, LTE1800, LTE2600 are already used to transmit LTE signals in Russia. 3G signals are transmitted in the ranges wcdma900, wcdma2100.
To receive mobile signals in these ranges you need broadband antennas. Among industrial designs, it is difficult to find simple and repetitive designs. Most often, antenna manufacturers use separate antennas for the low-frequency and high-frequency parts of the range to cover the entire range and combine them with a frequency-dependent combiner.
This approach has many disadvantages, such as:
The design of the antenna is much more complicated. The hardest thing to do is a filter adder.
The area occupied by the antenna is increasing.
Losses from summing ranges are growing.
Examples of such antennas in the photo below.

SHYAM Antenna for 900 + 1800 Dual Band Repeater:

However, full coverage of all ranges of mobile communications is not provided.
There is a need for a simple broadband design with the overlap of the entire range of mobile communications 800-1700 MHz.
Here is an example of such an antenna:

The antenna is a modernized broadband Batwing, 1945 patent.
"Batwing Super-Turnstile Antenna
US Patent Number: 2480153
Year: 1945
Inventor: Robert W. Masters
Original Document: US Patent Number 2480153 "
There is a mention of this antenna at Rothamel in the book "Antennas"

The antenna sheet can be cut from a flat galvanized sheet, 0.7 mm in one pass with a laser cutter. Additionally, you need to solder or rivet the cables from the same material with a size of 34x14mm. The antenna uses two flat square screens:
Lower 220x220, above 95x95.
Specifications:

[Sl4va 11]

I wonder what her SWR is?

[Admin 2546]

,,, look closer and you will find ... !!!

[Sl4va 11]

7 minutes ago, Admin said:

Присмотритесь, и вы найдете ... !!!

Sorry, but there is an image from the SWR. thank

[yeam 7]

"Additionally, you need to solder or rivet the cables from the same material with a size of 34x14mm. The antenna uses two flat square screens:
Lower 220x220, above 95x95."

Hi, May I know what is the distances between the two flat square screens and driven element? and where is the feeding point?
 

On 7/17/2020 at 4:32 PM, Sl4va said:

 

Besides, "5,5x9" in this figure, is this means 5x9mm with 5mm thickness?

[BurgHammer 1]

"5,5" = 5.5, comma is used for decimal points in some languages.

 

[Admin 2546]

,,, and here is the latest invention of the user "com666"(if he has the kindness he could also put the dimensions to this drawing))) ""

Batsa-5 (analogue of Nitsa-5) for the entire range of mobile communications 800 + 900 + 1800 + 2100 + 2400 + 2600 MHz in sizes 230x230x70mm

[yeam 7]

On 1/27/2021 at 3:20 PM, Admin said:

,,, and here is the latest invention of the user "com666"(if he has the kindness he could also put the dimensions to this drawing))) ""

Batsa-5 (analogue of Nitsa-5) for the entire range of mobile communications 800 + 900 + 1800 + 2100 + 2400 + 2600 MHz in sizes 230x230x70mm

Interesting, any update from com666? Or any link? 

[Admin 2546]

,,, thanks to "com666"....

,,,,discrete ceramic capacitor 1pf. Solder the containers in the places indicated in the diagram. They are needed to coordinate the Batwing in the center (frequencies 1700-2700 MHz)

[Hamza 43]

any real picture of this  ultra wide bande  antenna  i get confused with drawing !!!

 

[yeam 7]

Thanks COM666 and admin for sharing !!! May I know what material is used?

[Admin 2546]

,,, galvanized sheet 0.5-0.7mm thick...!!!

[Admin 2546]

,,,from Sl4va...

 

[Sl4va 11]

We are waiting for the simulation.

[clanon 247]

what graph do you need...?

(i'm working on it)