Sorry, I only saw one in a survey. I will try to find more information. ... wideband? ... not ... a ... it ... holes in ... a ... waveguide ... <r.snyder@i...>...
sharifmc
sharifmc@...
Aug 1, 2003 12:56 pm
555
Hi, I saw a filter topology containing zigzag screws in the broad wall of the waveguide. I think they were placed lambda/4 from each other. Have you seen...
sharifmc
sharifmc@...
Aug 1, 2003 10:03 pm
556
I am sure that all of us would like to give you good answers to your questions of "what are these filters", but your descriptions are incomplete. As a...
Dear Sir, I am looking for a paper on microwave filters using quarter wave couplings in the IEEE Trans. MTT November 1947 issue (also called as Proc. IRE at...
Rakhesh
rakhesh_singh@...
Aug 2, 2003 1:28 am
558
It appears that you're talking about half-wave cavity resonators in waveguide with quarter-wave lines between them. The quarter wave lines are superfluous, and...
H Clark Bell
h.c.bell@...
Aug 2, 2003 4:27 pm
559
Dear Sir, Indeed I was talking about the half-wave cavity resonators in waveguide with quarter-wave lines between them. Thanks for suggesting me about the...
Rakhesh
rakhesh_singh@...
Aug 3, 2003 9:06 pm
560
Matthaei, Young and Jones cover everything that was in Cohn's paper, and more....
H Clark Bell
h.c.bell@...
Aug 4, 2003 4:19 pm
561
Hi everyone, Does anyone know how to caculate the power handling capacity of a microstrip line Wilkson power divider? Waiting for your reply! Thank you! ...
b a
bolin8000@...
Aug 7, 2003 1:02 pm
562
Power handling of a Wilkinson divider is most often limited by the balancing resistor. For arbitrary load conditions (or input signal conditions if used as a...
Bo.Franzon@...
Aug 11, 2003 11:07 am
563
Dear Sir/Mdm, Currently I am student doing an project on designing Wideband Bandpass filter operating at 20Ghz to 40 Ghz using LTCC Technology, as I have very...
zesong03
zesong03@...
Aug 13, 2003 11:39 am
564
You will find useful information about LTCC including materials and suppliers at www.ltcc.de Michael...
Michael Reppel
M.Reppel@...
Aug 13, 2003 12:06 pm
565
Please note the changes below. In particular, if you wish to attach a file to a message you post (such as a simulation or plot or whatever), this change will...
Dick, Perhaps this only applies to "monitors" such as yourself who set up the web site. When I visited the site as requested it wanted to know a sign-in code...
Ralph Levy
r.levy@...
Aug 15, 2003 5:26 pm
567
To directly access the website, you have to set up a free yahoo account (go to yahoo.com and it takes about 2 minutes), get an ID and password, click "groups",...
hye my name is farooq , i am from islamabad pakistan i am the new member of the group , can anyone tell me that the members of this groups are the students of...
mfarooqtariq
mfarooqtariq@...
Aug 16, 2003 2:07 pm
569
In Cohn's original paper on slotline (Oct 1969), Cohn claims slotline has no cutoff frequency (as compared to waveguide) and exhibits non-TEM properties. For...
I have analysed slotlines on HFSS. Surely, the size of the port affects the port impedance, but that is also the case with striplines, etc. Slotlines are...
hi sir, i am, Rajeev Gupta, student of RMIT, melbourne and doing my thesis work and i hav to design a Bandpass type filter at a centre freq. 24 ghz with 1 GHZ...
imperial_raj
ragupta123@...
Aug 23, 2003 3:14 pm
572
On the site: http://www.guidedwavetech.com you can analyze and design waveguide filters using the mode-matching method. The design process is straightforward...
mosoft2000
mosoft2000@...
Aug 25, 2003 6:46 pm
573
Hi. I've created a neural model of asymetrical inductive iris in rectangular waveguide and to test it, I need to analize an example of bandpass filter. Could...
bales_zbawca
bales_zbawca@...
Sep 1, 2003 7:39 pm
574
What the meaning of compensated phase velocity v in the following function? l K(f)=tanh[¡Ò sin(4f¦Ðz/v)p(z)dz] 0 where K(f) is the coupling frequency...
ily_ok3000
ily_ok3000@...
Sep 4, 2003 11:37 am
575
I am working on some software to perform network synthesis using Characteristic and Transducer Functions. The filters I am looking at are low-pass all-pole...
richard_gipps
rgipps@...
Sep 4, 2003 4:08 pm
576
In microstrip and other quasi TEM structures the even and odd mode phase velocities are not equal. To build a wideband, high directivity coupler you have to do...
Bo Franzon
Bo.Franzon@...
Sep 5, 2003 4:53 pm
577
... I am eager to know what does FILSYN mean?...
qinglemon79
qinglemon@...
Sep 11, 2003 1:11 pm
578
I have read R.J.Cameron's "General Coupling Matrix Synthesis Methods for Chebyshev Filtering Functions" ,and I got some problems,I just wonder if there is...
qinglemon79
qinglemon@...
Sep 11, 2003 1:11 pm
579
I´m measuring integrated transformers but I´m not sure how to obtain the primary and secondary inductances. I´m thinking of measuring the primary port...
For information on the matrix rotation method, refer for example to Atia and Williams: "New types of waveguide bandpass filters for satellite transponders",...
Bo Franzon
Bo.Franzon@...
Sep 12, 2003 10:50 am
581
Another good reference illustrating pivot point operations is by Cameron and Rhodes, "Asymmetric Realizations for Dual Mode BAnd Pass Filters", Trans MTT,...
S.O.S. to everybody: could anybody pls. be such friendly and helpful and supply me a complete derivation (maybe in form of a .pdf-file) or help me by means of...
nwall001
nowa@...
Sep 14, 2003 3:21 pm
583
Dear Norbert, I think you are highlighting an important problem in text book material for filter design. Coupling matrix synthesis is somehow usually taken for...
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