Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

High frequency diode - RF flow in both directions?

Status
Not open for further replies.
M

mchpddl1

Newbie level 6
Joined
Jun 10, 2006
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,368
Hi, can i ask:

When a PIN diode is forward biased, can an RF flow in both directions such that S12=S21 ? or is it only one direction, please clarify fo rme thank you.
 

Re: High frequency diode

Yes, it may flow in both directions UNTIL diode is forward biased.
Note that when pin diode is forward biased it acts like dynamic resistor, which resistance is inverted proportional to biasing current.
Pin diode may be shown as parallel junction of capacitor and dynamic resistor, for forward biasing. Because it is in real packing, there are also parasitic inductance and resistance in series with diode and parasitic capacitance in parallel with them all.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top