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Antenna Design
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vmoyo



Joined: 27 Oct 2009
Posts: 1
Location: United Kingdom
Post06 Nov 2009 14:06   

Antenna Design
Hie. Can somebody please help. For my final year project I am designing a steering beam antenna for 2.4GHz. I need varactor diodes each with capacitance ranging from 0.07pf to 39pf. cant identify any in the market.
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vfone



Joined: 10 Oct 2001
Posts: 2328
Helped: 327
Post06 Nov 2009 16:17   

Re: Antenna Design
This varactor with very low min capacitance and relative high max capacitance was not invented yet.
From the values you provide (0.07pF !!) I am pretty sure you got them from the simulator.
I recommend first to find a decent varactor, simulate and adjust the circuit for the new values.
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akedar



Joined: 27 Jul 2004
Posts: 295
Helped: 15
Post15 Nov 2009 7:39   

Antenna Design
HI
for steering u can use passive circuit design also like power dividers with some RLC comps
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