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[TUT][DIY] Cheap External Antenna For HTC Sensation

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By m.m.m, Senior Member on 26th August 2014, 02:02 PM
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Hi folks, several days ago I bought an 18cm high GSM antenna (really cheap, about $5 if I convert it to USD), and also bought a cheaper (if I convert it to USD it will be $0.66) SMA connector for it, and realized that the antenna connectors of the Sensation are on it's back cover, so I could simply connect the antenna to the phone.

well, first of all you'd better to watch W2AEW's awesome video about Decibels to actually understand what you're doin'.

here's the antenna I've bought (the seller told me it's 18cm high but it's 19.5cm ):

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and this is the SMA connector, before you buy the connector, you have to find out if your antenna's connector is male or female. in my case it was male so I bought a female connector for it:
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then you have to solder some wires to your antenna, one for the ground and another for the signal. coaxial cable is the best solution because of lower noise but it's so thick, here is some antenna wires I just found with a quick search on Ebay, and they're not that thick. also keep wires as short as possible, in my case I just wanted to test the antenna so didn't care about the wires:
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the two connectors above the camera on the back of the phone are for WiFi, and the two below the SD Card are for GSM. so I connected the wires of antenna to the bottom ones, and, here's the result:
with the original antenna (which is the cover door of the phone):
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without any antennas (without cover door):
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with the external antenna:
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I'm planning to drill a hole on a cheap cover door and mount the antenna on the cover, and also add some more antennas like GPS and WiFi. (then probably it won't fit in any pocket )

if you tried it too, please hit the thanks button.
Last edited by m.m.m; 31st August 2014 at 02:20 PM.
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30th August 2014, 07:38 PM |#2  
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Awesome, can you share a photo of your modified Sensation?
31st August 2014, 02:17 PM |#3  
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Quote:
Originally Posted by @@RON

Awesome, can you share a photo of your modified Sensation?

well, I haven't still mounted it on the door of my sensation, but I'm going to do it, and when I did it I'll add the photo of it. this post was just for confirming that it works this way.
31st August 2014, 02:20 PM |#4  
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Quote:
Originally Posted by m.m.m

well, I haven't still mounted it on the door of my sensation, but I'm going to do it, and when I did it I'll add the photo of it. this post was just for confirming that it works this way.

All right, I'm waiting excited for the photo(s)
31st August 2014, 02:29 PM |#5  
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another thing I wonder is that if we can add an external antenna without loosing the 3G capability.

edit: I'm working on adding the antenna beside internal antenna so it will have both EDGE and HSDPA.
Last edited by m.m.m; 31st August 2014 at 04:10 PM.
15th September 2014, 11:03 PM |#6  
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Thats really cool!
Will have a try this week
15th October 2014, 10:39 PM |#7  
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It works and increases the db, but unfortunately it doesn't solve my problem, I wanted to keep in touch in a place which is far away from the operator antennas, but it doesn't help me because of the huge distance, maybe I should switch to another operator. so I discontinue this project but it doesn't mean that it doesn't work.
Last edited by m.m.m; 30th December 2014 at 11:28 AM.
16th October 2014, 10:47 AM |#8  
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Quote:
Originally Posted by m.m.m

It works and increases the Db, but unfortunately it doesn't solve my problem, I wanted to keep in touch in a place which is far away from the operator antennas, but it doesn't help me because of the huge distance, maybe I should switch to another operator. so I discontinue this project but it doesn't mean that it doesn't work.

Sad to hear, that it doesn't really satisfy your situation and you discontinued the project. Can you please share a picture of the back cover anyway?
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diy, external antenna, homemade, htc sensation
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