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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: 2,526
    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: 33,074
    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: 33,281
    james
    26th December 2002, 15:44 Go to last post

  1. Why does my homemade Yagi wifi antenna perform so poorly?

    Started by AmateurDIYAntenna, 16th August 2019 06:21
    12 Attachment(s)
    • Replies: 17
    • Views: 542
    BigBoss
    Yesterday, 14:36 Go to last post

  2. Active HF phase shifter?

    Started by neazoi, 13th August 2019 15:34
    2 Attachment(s)
    • Replies: 10
    • Views: 444
    neazoi
    Yesterday, 14:23 Go to last post

  3. SBL-1 double balanced mixer

    Started by mipat, 17th August 2019 20:58
    1 Attachment(s)
    • Replies: 0
    • Views: 99
    mipat
    17th August 2019, 20:58 Go to last post

  4. Which transistor need to be chosen for designing KU-Band LNA Design high gain, low NF

    Started by pusparaga, 16th August 2019 01:40
    • Replies: 2
    • Views: 256
    Externet
    17th August 2019, 19:10 Go to last post

  5. High power efficiency oscillator topologies?

    Started by Archimedes, 15th August 2019 17:38
    4 Attachment(s)
    • Replies: 14
    • Views: 388
    Archimedes
    17th August 2019, 08:11 Go to last post

  6. bfq162 pnp comlementary?

    Started by neazoi, 16th August 2019 13:27
    • Replies: 1
    • Views: 113
    BigBoss
    16th August 2019, 14:47 Go to last post

  7. Automatic selection of element values of antennas impedance models

    Started by bikrader, 14th August 2019 16:02
    2 Attachment(s)
    • Replies: 2
    • Views: 145
    bikrader
    16th August 2019, 10:57 Go to last post

  8. Are there really ferrites for multi-GHz frequencies?

    Started by htg, 5th August 2019 17:09
    • Replies: 3
    • Views: 351
    Zak28
    16th August 2019, 08:05 Go to last post

  9. Cellular Power Densities

    Started by Zak28, 16th August 2019 07:57
    • Replies: 0
    • Views: 81
    Zak28
    16th August 2019, 07:57 Go to last post

  10. Metal patterns in PCBs

    Started by dajuhovova, 15th August 2019 12:34
    1 Attachment(s)
    • Replies: 4
    • Views: 184
    BigBoss
    15th August 2019, 21:05 Go to last post

  11. Looking for a VHF/UHF 90 degrees Hybrid Coupler part

    Started by Hadi-Alik, 14th August 2019 14:25
    • Replies: 4
    • Views: 230
    BigBoss
    15th August 2019, 13:30 Go to last post

  12. Problem about amplifier biasing circuit

    Started by sqx, 15th August 2019 10:27
    1 Attachment(s)
    • Replies: 4
    • Views: 164
    BigBoss
    15th August 2019, 13:27 Go to last post

  13. design and simulation of cross-coupled VCO using keysight ADS

    Started by rkhandare, 1st August 2019 09:43
    3 Attachment(s)
    • Replies: 9
    • Views: 508
    BigBoss
    13th August 2019, 09:55 Go to last post

  14. How to Count the Transmission Zero?

    Started by luoni2002, 13th August 2019 09:48
    1 Attachment(s)
    • Replies: 0
    • Views: 97
    luoni2002
    13th August 2019, 09:48 Go to last post

  15. How to increase high frequency output power

    Started by circuitking, 12th August 2019 13:58
    1 Attachment(s)
    • Replies: 5
    • Views: 236
    vivekroy
    13th August 2019, 06:17 Go to last post

  16. problem: coupling coefficient for two hairpin resonators

    Started by FMM28, 6th August 2019 12:39
    14 Attachment(s)
    • Replies: 9
    • Views: 385
    BigBoss
    12th August 2019, 11:59 Go to last post

  17. Tuning Selectivity Factor

    Started by Externet, 11th August 2019 17:04
    • Replies: 2
    • Views: 186
    BradtheRad
    12th August 2019, 09:40 Go to last post

  18. CST accuracy control beyond the mesh density

    Started by kato01, 8th August 2019 12:26
    • Replies: 4
    • Views: 283
    kato01
    10th August 2019, 11:35 Go to last post

  19. [SOLVED] CAN ID receive issue in PIC18F46K80

    Started by desgin, 9th August 2019 13:35
    • Replies: 3
    • Views: 185
    KlausST
    10th August 2019, 07:28 Go to last post

  20. Frequency divider ICs for RF

    Started by Externet, 9th August 2019 16:50
    • Replies: 2
    • Views: 166
    BigBoss
    9th August 2019, 21:37 Go to last post

  21. TARC in MIMO Antenna

    Started by shruthi ganesh, 9th August 2019 11:05
    • Replies: 0
    • Views: 118
    shruthi ganesh
    9th August 2019, 11:05 Go to last post

  22. Moved: crosscoupled VCO in keysight ADS

    Started by rkhandare, 8th August 2019 11:36
    •  
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  23. Circular Waveguide in HFSS

    Started by ricky1048576, 8th August 2019 07:05
    1 Attachment(s)
    • Replies: 0
    • Views: 93
    ricky1048576
    8th August 2019, 07:05 Go to last post

  24. Stability of a circuit and its role in design steps

    Started by circuitking, 4th June 2019 06:48
    • Replies: 8
    • Views: 694
    vivekroy
    7th August 2019, 20:26 Go to last post

  25. Frequency Multipier in ADS

    Started by baby_2, 4th August 2019 12:52
    10 Attachment(s)
    • Replies: 8
    • Views: 339
    baby_2
    7th August 2019, 16:00 Go to last post

  26. Power considerations for 50 Ohm resistors in power combiners

    Started by Hawaslsh, 6th August 2019 14:47
    6 Attachment(s)
    • Replies: 6
    • Views: 211
    SunnySkyguy
    6th August 2019, 20:32 Go to last post

  27. How to reduce Harmonic Balance simulation time in Spectre

    Started by circuitking, 11th July 2019 19:15
    • Replies: 7
    • Views: 548
    circuitking
    6th August 2019, 19:35 Go to last post

  28. How to "de-resonate" a resonant circuit?

    Started by Swend, 4th August 2019 19:32
    1 Attachment(s)
    • Replies: 5
    • Views: 359
    Swend
    5th August 2019, 18:04 Go to last post

  29. Characteristics of PD output of CDR

    Started by usuikazkou, 5th August 2019 09:36
    1 Attachment(s)
    • Replies: 0
    • Views: 118
    usuikazkou
    5th August 2019, 09:36 Go to last post

  30. [SOLVED] Difference of S-parameters between Cadence Spectre and Keysight ADSsim

    Started by pancho_hideboo, 27th July 2019 17:56
    3 Attachment(s)
    • Replies: 11
    • Views: 534
    volker@muehlhaus
    4th August 2019, 21:08 Go to last post
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