+ Post New Thread
Results 1 to 7 of 7

13th September 2018, 11:07 #1
 Join Date
 Jun 2018
 Posts
 15
 Helped
 0 / 0
 Points
 111
 Level
 1
which capacitor I should use for 2.4 Ghz rectenna?
Respected Sir,
I hope you are doing good. I am going to fabricate a rectifying circuit for 2.4 Ghz antenna. I want to know which capacitor I need to buy.
Thanks.

Advertisment

13th September 2018, 11:26 #2
 Join Date
 Oct 2006
 Location
 Real Homeless
 Posts
 2,252
 Helped
 619 / 619
 Points
 14,921
 Level
 29
Re: which capacitor I should use for 2.4 Ghz rectenna?

13th September 2018, 11:55 #3
 Join Date
 Jun 2018
 Posts
 15
 Helped
 0 / 0
 Points
 111
 Level
 1
Re: which capacitor I should use for 2.4 Ghz rectenna?
Thank you Sir for response. The rated voltage of this capacitor is 6.3 V dc while my rectifying circuit will be able to generate about 1 V , will this will work?

Advertisment

13th September 2018, 12:18 #4
 Join Date
 Jun 2018
 Posts
 15
 Helped
 0 / 0
 Points
 111
 Level
 1

13th September 2018, 12:21 #5
 Join Date
 Oct 2006
 Location
 Real Homeless
 Posts
 2,252
 Helped
 619 / 619
 Points
 14,921
 Level
 29
Re: which capacitor I should use for 2.4 Ghz rectenna?
Surely understand a meaning of “rated voltage”.

13th September 2018, 12:27 #6
 Join Date
 Jun 2018
 Posts
 15
 Helped
 0 / 0
 Points
 111
 Level
 1
Re: which capacitor I should use for 2.4 Ghz rectenna?
Thank you sir, I also need an inductor and a diode for the same frequency, If you can help me I will be thankful.

Advertisment

14th September 2018, 05:54 #7
 Join Date
 Apr 2011
 Location
 Minneapolis, Minnesota, USA
 Posts
 12,579
 Helped
 2502 / 2502
 Points
 51,238
 Level
 55
Re: which capacitor I should use for 2.4 Ghz rectenna?
Tentatively suppose you have 100uA at 1V, 2.4 GHz.
Raw math calculates an impedance of 10k ohms.
Again tentatively you can start with the formulas for reactive impedance. Solve C & L values for 10k at 2.4 GHz.
XC = 1 / (2 Pi f C)
XL = 2 Pi f L
Although the results can be refined by further calculations, you should arrive at an LC resonant frequency of 2.4 GHz.
+ Post New Thread
Please login