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Forum: RF, Microwave, Antennas and Optics

RF, microwave, antennas and optics questions. Radio/TV/satellite transmitters and receivers.

  1. Sticky Thread Sticky: 26V Current Sense Amplifier

    Started by mmatheson, 16th May 2018 16:43
    • Replies: 0
    • Views: 936
    mmatheson
    16th May 2018, 16:43 Go to last post

  2. Sticky Thread Sticky: Do not post e-books or requests for e-books or ieee papers here!

    Started by klug, 9th May 2007 08:28
    • Replies: 0
    • Views: 32,038
    klug
    9th May 2007, 08:28 Go to last post

  3. Sticky Thread Sticky: LEGALS/UNLEGALS FILES----NEW RULES

    Started by james, 26th December 2002 15:44
    • Replies: 0
    • Views: 32,238
    james
    26th December 2002, 15:44 Go to last post

  1. Smith chart of λ/4 Transmission Line

    Started by promach, 19th March 2019 05:55
    • Replies: 16
    • Views: 439
    FvM
    Today, 18:08 Go to last post

  2. Bipolar transistor availability

    Started by sophiante, Yesterday 15:10
    • Replies: 4
    • Views: 120
    biastee
    Today, 13:00 Go to last post

  3. Proof of Unequal/Asymmetric Division Through Wilkinson Divider

    Started by promach, Yesterday 14:22
    1 Attachment(s)
    • Replies: 1
    • Views: 105
    LMA
    Today, 09:15 Go to last post

  4. Metamaterial unit cell structure of Metawave's radar used for beam steering.

    Started by Georgy.Moshkin, 14th March 2019 05:01
    2 Attachment(s)
    • Replies: 3
    • Views: 155
    Georgy.Moshkin
    Today, 08:33 Go to last post

  5. Enlarging microstrip antenna

    Started by Unaz, Yesterday 19:15
    • Replies: 0
    • Views: 89
    Unaz
    Yesterday, 19:15 Go to last post

  6. Solve for er from propagation constant

    Started by Hawaslsh, 21st March 2019 19:54
    2 Attachment(s)
    • Replies: 4
    • Views: 183
    Hawaslsh
    Yesterday, 18:14 Go to last post

  7. Is this circuit Band Pass filter ?

    Started by noor84, 21st March 2019 10:15
    1 Attachment(s)
    • Replies: 1
    • Views: 180
    noor84
    Yesterday, 18:09 Go to last post

  8. Moved: Advise about the circuit in the attached file

    Started by noor84, Yesterday 18:15
    •  
    •  

  9. 100MHz soil moisture sensor

    Started by gizzard, 3rd March 2019 04:43
    1 Attachment(s)
    • Replies: 7
    • Views: 389
    biff44
    Yesterday, 14:06 Go to last post

  10. Is it really "heating" used for beam scanning in Echodyne's radar?

    Started by Georgy.Moshkin, 14th March 2019 05:29
    • Replies: 4
    • Views: 244
    biff44
    Yesterday, 14:05 Go to last post

  11. No commercial 10MHz-50MHz antenna ? How to build?

    Started by shanmei, 13th March 2019 14:36
    1 Attachment(s)
    • Replies: 6
    • Views: 244
    biff44
    Yesterday, 14:00 Go to last post

  12. RF Limiter not working as it should

    Started by syedhamzahasan, 19th March 2019 14:47
    3 Attachment(s)
    • Replies: 4
    • Views: 169
    biff44
    Yesterday, 13:58 Go to last post

  13. DDS vs PLL RF Link Budget

    Started by ktr, 18th March 2019 10:11
    • Replies: 1
    • Views: 107
    biff44
    Yesterday, 13:56 Go to last post

  14. Where can I get my transmitter/microwave link tested

    Started by Pat42, 17th March 2019 15:36
    • Replies: 5
    • Views: 211
    biff44
    Yesterday, 13:52 Go to last post

  15. multi-stage lna matching

    Started by SDRookie, 21st March 2019 04:44
    • Replies: 4
    • Views: 192
    BigBoss
    Yesterday, 07:40 Go to last post

  16. need 7pF to 10pF at 2.5GHz

    Started by pragash, 8th March 2019 12:35
    3 Pages •
    1 2 3
    16 Attachment(s)
    • Replies: 43
    • Views: 1,364
    volker@muehlhaus
    21st March 2019, 19:56 Go to last post

  17. LC VCO poor phase noise @1MHz

    Started by rty94, 20th March 2019 21:42
    • Replies: 3
    • Views: 141
    volker@muehlhaus
    21st March 2019, 08:40 Go to last post

  18. power amplifier design input impedance

    Started by akhilpaulv, 6th March 2019 10:50
    13 Attachment(s)
    • Replies: 16
    • Views: 627
    mtwieg
    21st March 2019, 02:28 Go to last post

  19. How to simulate CMOS switche capacitor for converter (DC -DC ) in ADS

    Started by So.nia, 20th March 2019 11:18
    • Replies: 0
    • Views: 81
    So.nia
    20th March 2019, 11:18 Go to last post

  20. CML buffer advantages for VCO

    Started by rty94, 19th March 2019 22:05
    • Replies: 2
    • Views: 228
    dick_freebird
    20th March 2019, 03:52 Go to last post

  21. Question about transistor on MMIC

    Started by sqx, 19th March 2019 04:22
    2 Attachment(s)
    • Replies: 3
    • Views: 123
    BigBoss
    19th March 2019, 07:23 Go to last post

  22. Dual band variable gain amplifier

    Started by Johannah, 14th March 2019 09:04
    • Replies: 2
    • Views: 177
    Johannah
    19th March 2019, 04:26 Go to last post

  23. Transmission line question and a CPW to microstripp transition question

    Started by Hawaslsh, 18th March 2019 20:46
    3 Attachment(s)
    • Replies: 3
    • Views: 104
    Georgy.Moshkin
    19th March 2019, 04:22 Go to last post

  24. Long distance ultrasonic range finder

    Started by jlehman, 13th March 2019 22:57
    1 Attachment(s)
    • Replies: 7
    • Views: 322
    FvM
    18th March 2019, 23:00 Go to last post

  25. Digital phasing in feeds

    Started by senmeis, 17th March 2019 15:48
    • Replies: 0
    • Views: 127
    senmeis
    17th March 2019, 15:48 Go to last post

  26. [SOLVED] dual axis tracking antennas

    Started by senmeis, 16th March 2019 15:53
    1 Attachment(s)
    • Replies: 1
    • Views: 164
    wwfeldman
    16th March 2019, 23:48 Go to last post

  27. How to increase printed meandered dipole antenna bandwidth

    Started by kpy, 11th March 2019 15:25
    1 Attachment(s)
    • Replies: 8
    • Views: 353
    volker@muehlhaus
    16th March 2019, 09:57 Go to last post

  28. [ADS] designing series coils (spiral inductors)

    Started by pragash, 14th March 2019 13:54
    • Replies: 4
    • Views: 168
    pragash
    14th March 2019, 16:28 Go to last post

  29. Adding ports to know resistance at some point in 2-patch antenna

    Started by vani1221murthy, 13th March 2019 22:28
    • Replies: 1
    • Views: 112
    Georgy.Moshkin
    14th March 2019, 05:16 Go to last post

  30. overhead keyhole question

    Started by senmeis, 21st December 2018 15:48
    • Replies: 5
    • Views: 461
    senmeis
    13th March 2019, 15:31 Go to last post
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