30 Threads found on edaboard.com: Pin Diode Limiter
Hi all, in radars after the TR-cell there is usally a pin-diode limiter.
Before the incoming wave meets the pin-diode, some of its power is coupled into a schottky diode for making a DC-voltage. This DC-voltage is applied to the pin-diode and will bias it (...)
RF, Microwave, Antennas and Optics :: 22.10.2004 03:54 :: StoppTidigare :: Replies: 0 :: Views: 1919
I have a big problem. I must simulate a pin diode limiter with some of the common micorwave circuital simulation, for example Ansoft Designer.
In particular i must simulate the recovery time, and so I must insert in the simulator a suqare pulse that envelopes a sinusoidal wave.
Can anyone help me?
Thanks in advance
Electromagnetic Design and Simulation :: 20.01.2009 16:24 :: ssayan79 :: Replies: 0 :: Views: 1599
Try the links below for application notes.
As for diode choice, that depends on your frequency range and manufacturing techniques. The diode manufacturer's applications departments would be a good place to start.
Microsemi pin diode handbook
RF, Microwave, Antennas and Optics :: 11.09.2008 08:26 :: G4BCH :: Replies: 5 :: Views: 1677
Try using pin-diode (or Schottcky diode) Limmiters.Packaged & Drop-in versions are available.
check this link for example:
RF, Microwave, Antennas and Optics :: 19.07.2006 00:42 :: memarian :: Replies: 9 :: Views: 1279
Can somebody tell me if i want to simulate a waveguide limiter using pin diodes what software i should use.
i have HFSS in mind, and the electronic circuitry can be modeled in Ansoft designer.
how can i simulate a pin diode with incoming EM waves in a waveguide
looking for your kind suggstions
RF, Microwave, Antennas and Optics :: 15.09.2010 08:33 :: usman_mahfooz :: Replies: 0 :: Views: 904
Hi - this is my first question posted on this forum - and I have more to go later ;)
I saw some docs and pages on the web about using cheap pin diodes instead hard to get and expensive SRDs but they were quite general.
You may already guessed it is to be used as pulse generator with very short rise / fall times.
I don't know how fast (...)
RF, Microwave, Antennas and Optics :: 06.07.2011 08:47 :: BlackBishop :: Replies: 10 :: Views: 1953
I used a coaxial pin diode limiter to protect my receiver blocks.
its limit the power at +20dBm. but at above -10dBm input power, the harmonics of input comes up and detected in receiver.
my question is, which parameter of detectors is important for harmonics level below limiting threshold of limiter?
RF, Microwave, Antennas and Optics :: 27.08.2012 06:01 :: hosein_rabiee_g :: Replies: 7 :: Views: 389
could somebody help me to design a limiter using pin diode to get flat leakage of 0dbm? Shall i go for multistage pin diode or 1 pin and 1 schottky diode?how does limiter output depends on frequency?
and how can i simulate it in ADS? I didnt find a (...)
RF, Microwave, Antennas and Optics :: 01.09.2012 10:39 :: JAISHEE :: Replies: 3 :: Views: 622
Wanted some advice on HSMP389C pin diode which i saw in receive design. Its was used as limiter, placed at the input of LNA. How can i calculate the maximum power handling of the limiter in that circuit before its damage due to high power transmited to receive path. I read thru the data sheet and no information was (...)
RF, Microwave, Antennas and Optics :: 07.03.2013 06:38 :: danesh :: Replies: 1 :: Views: 348
i wish to know if there is a nonlinear model of pin diode for ADS software
( advanced design system of agilent), that i can use as limiter ?
RF, Microwave, Antennas and Optics :: 07.12.2003 04:24 :: eladg :: Replies: 0 :: Views: 1058
limiter design CW>5W, use pin diode usually, I want to know that it can be done with active device in IC design ?
Can give some reference ??
Analog Circuit Design :: 02.02.2005 04:54 :: filtershaoyong :: Replies: 1 :: Views: 1517
I need details of RF limiter using pin diode and Schottky diode.
examples RF limiter simulation using MWO or ADS(4.2 to 4.4 GHz).
RF, Microwave, Antennas and Optics :: 27.10.2005 00:24 :: ADS_RFMW :: Replies: 1 :: Views: 1813
how can we use a simple diode instead of pin or schottkey diode?would you please tell me more about your opinion?
young.microwave.eng :You can do it by connecting the two diodes back to back and in shunt with transmission line. Pass an AC signal of 5V 50 Hz, then you will get the limited signal, let say (...)
RF, Microwave, Antennas and Optics :: 09.02.2009 23:23 :: kspalla :: Replies: 12 :: Views: 1047
Is it possible to design a power limiter ( with pin diode or schottky diode) with a threshold at 0dBm (possibly even at -10dBm). If that is the case, how ?:?:
Thank you in advance :wink:
RF, Microwave, Antennas and Optics :: 17.04.2009 06:43 :: Thepretender76 :: Replies: 8 :: Views: 949
I am doing a power limiter with shunted pin diode. If we consider pin diode with different intrinsic region thickness, is there more insertion loss with a thiner I region pin diode or not ? Why ? Is it because of the jonction capacitance ?
Thanks for your (...)
RF, Microwave, Antennas and Optics :: 08.09.2009 08:28 :: Thepretender76 :: Replies: 5 :: Views: 1586
There are two reasons a schottky diode will fail:
1) static damage
2) high microwave power
For static damage, a small value series cap that only passes microwaves, and a shunt inductance to ground (or if narrowband, a quarterwave stub to ground) will probably fix it.
If it is high microwave power, you have to differentiate from situations w
RF, Microwave, Antennas and Optics :: 12.10.2009 08:23 :: biff44 :: Replies: 5 :: Views: 1256
Can anybody send spice- model for pin diodes --> MA4P505-131,MA4604-134 and MA4L031-131
Thanks in advance.
RF, Microwave, Antennas and Optics :: 31.03.2010 02:16 :: radl :: Replies: 3 :: Views: 2320
I didn‘t found a propriete a diode for limiter。can anyone recommend one 。The up frequency is 40GHz。
what about the Micrometrics’s MLP7100（
RF, Microwave, Antennas and Optics :: 25.08.2010 06:26 :: 2502002036 :: Replies: 0 :: Views: 583
I need a very wideband limiter 80-4500MHz.
does anyone have an idea of a commercial limiter I can use? (not connectorized)
on the other hand, can anyone refer me to a good design note?
the simple design I know is of a shunt pin diode and a shunt inductor as an RF choke but
how can I use a inductor if I have (...)
RF, Microwave, Antennas and Optics :: 11.09.2011 08:10 :: SagSag :: Replies: 6 :: Views: 1339
i'll look into the radar handbook.
the design from Eyal seems to use pin diode for the limiter design. is there other means to implement it for board level?
RF, Microwave, Antennas and Optics :: 08.06.2004 11:03 :: marco110 :: Replies: 10 :: Views: 2500
If they are the same frequency, you need to use a ferrite device called a circulator. You also might need some sort of pin diode switch or limiter in front of the receiver to keep it from blowing up if the antenna is ever removed or short circuited.
If they are different frequencies, you use two bandpass filters arranged in a diplexer (...)
RF, Microwave, Antennas and Optics :: 16.04.2005 09:00 :: biff44 :: Replies: 1 :: Views: 745
A "duplexer" is a high powered limiter, often pin diode or gas discharge tube based.
A "diplexer" is a filter system with a common port and two different-frequency ports.
You must research what a "singly terminated filter" means in order to properly design a diplexer filter.
RF, Microwave, Antennas and Optics :: 24.06.2005 05:42 :: biff44 :: Replies: 1 :: Views: 1355
My LNA (2.4GHz) has just 5mA Ic current, but the jungle of ISM band can hurt it a lot. How can I protect it?
I assume a pin diode in front of the LNA will do the job, but how to implement it?
Can I find somewhere an application note regarding how to protect the LNA?
Thank you in advance to all people.
RF, Microwave, Antennas and Optics :: 17.07.2007 21:49 :: HS :: Replies: 5 :: Views: 753
You will need a shottky diode to detect the envelope, and drive that current into a pin attenuator.
RF, Microwave, Antennas and Optics :: 27.12.2010 14:11 :: biff44 :: Replies: 4 :: Views: 691
Any form of limiting will strip off the AM. At lower frequencies, a comparator will work well and cheaper than a pin diode and associated circuitry.
Analog Circuit Design :: 26.01.2011 20:37 :: flatulent :: Replies: 1 :: Views: 528
i am designing a T/R module in X band for a radar......for this i need a limiter circuit using MA4L011134 pin diode.......i want to know where can i find .s1p file for this be used in ADS
Also LNA design using MGF4941AL.......
Also i am designing a 10W Class AB Solid state power amplifier using a discrete transistor who
RF, Microwave, Antennas and Optics :: 07.03.2011 14:01 :: mtechnikhil :: Replies: 0 :: Views: 567
pins 1/2 are a diode so use a dmm set to diode range
pin 3/4 are a transistor so you can use a transistor tester or dmm again in diode test
however if its short here its gone if its open its usualy ok
the only real way is to build a circuit on a breadboard etc
and plug it in and pulse (...)
Electronic Elementary Questions :: 10.12.2006 19:53 :: VSMVDD :: Replies: 1 :: Views: 5581
My input:-70~10dbm 150MHz
I want output<-10dBm insertion Loss<3dBm
I use two pin diobes parallel connect to earth,but it don't work well,output<10dBm.
who can help me,thank
use active bais
RF, Microwave, Antennas and Optics :: 25.12.2006 05:05 :: eladg :: Replies: 3 :: Views: 730
HSMP3813 is basically pin diode this means that it needs detector to power it. So the limiting power is depend on the detector circuit than this device.
Share your schematic to advice you better.
RF, Microwave, Antennas and Optics :: 24.03.2009 09:36 :: kspalla :: Replies: 6 :: Views: 827
LM317 specification is that the output is 1.2v higher that the ADJ pin so the minimum voltage in the output is 1.2v.
The circuit that you describe uses a -1.2v fed into the ADJ pin so that the LM317 can have an output down to 0v.
The negative voltage uses a diode and capacitor to rectify the negative voltage and regulates the -1.2v using (...)
Hobby Circuits and Small Projects Problems :: 18.01.2011 16:54 :: alexan_e :: Replies: 9 :: Views: 2455