9 Threads found on edaboard.com: Stub Loaded
can anybody tell me how i can make stub loaded helical antenna or how i can add stubs in helical antenna in HFSS. please help me...
Electromagnetic Design and Simulation :: 26.04.2012 09:50 :: mudassar-nauman :: Replies: 0 :: Views: 306
please help me design stub loaded helix in hfss . i,ve given the link for the geomatry of stub loaded helix please help me to design this in hfss ....thanks...
RF, Microwave, Antennas and Optics :: 26.04.2012 11:58 :: mudassar-nauman :: Replies: 0 :: Views: 281
I want to draw the stub loaded Helix (SLH) in HFSS, which offers a substantial size reduction over a conventional axial mode helix without sacrificing performance.
I am having problems designing this helical antenna.I draw the structure,but it didn't work ,it have some errors,may be the stucture i have drawed is wrong.I don't understand,because
RF, Microwave, Antennas and Optics :: 18.03.2009 22:01 :: lwking412 :: Replies: 1 :: Views: 617
HoW do I design a dual band bandpass filter using Ansoft Designer 2 ??? Need help from the initial step..
Electromagnetic Design and Simulation :: 09.12.2009 21:38 :: diamondeholic :: Replies: 0 :: Views: 922
i need to design a loaded-line phase shifter for phase shift of 22.5 degree
i have decided to go for stub mounting circuit...the problem is im using pin diode for the phase shifting using AWR microwave Office
how do we actually mounted a pin diode at the end of the stub??
im using pin diode model hsmp 386x ,the spice model for this diode (...)
RF, Microwave, Antennas and Optics :: 06.09.2010 05:29 :: jothi1785 :: Replies: 7 :: Views: 1236
where u place the active device is somewhat irrelevant. But you may not want to "directly" attach a gate to a microstrip ring, as you would end up with a very low Q resonator. There is decoupling inherently built in, either with a small value lumped capacitor or a physical gap between the ring and the gate stub. With the proper decoupling, your
RF, Microwave, Antennas and Optics :: 12.06.2013 03:42 :: biff44 :: Replies: 6 :: Views: 485
I need to design a 6Ghz VCO. In a post on this board last year there was a question about designing a 5Ghz VCO. The link to that discussion is response from board member "DJ" was as follows:
"Simple. Use BJT 681000 (of Nec)or its package or 420000 (Of @gilent).
Load the Emiter by
RF, Microwave, Antennas and Optics :: 21.03.2005 20:47 :: mkeppler :: Replies: 0 :: Views: 890
My best results have been with plastic coathangers drilled out 1/4 wave and a metal rod glued to the interior, the base of the coathanger can be done like-wise to use as a tuning stub. coax may be soldered to the the first rod and the shield can be glued to the outside, be sure to use epoxy, wood glue as a well as a wood coathanger won't work.
RF, Microwave, Antennas and Optics :: 26.08.2008 18:27 :: sigint :: Replies: 7 :: Views: 889
Polyethylene is cheap:
Emerson cumming makes a loaded polystyrene if you want to be fussy.
thanks for reply my ask. i visit the McMaster site for polyethylene, but i couldn't find relative permitivity (er=?) of material.
is there er=10.2 ?
Electromagnetic Design and Simulation :: 02.06.2011 04:24 :: zohre :: Replies: 4 :: Views: 745