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Recent content by monolothics

  1. M

    How to measure digital phase shifter

    hi, jiripolivka thanks for the reply, But also how to know the responses of each state??, i mean if i want to know the response of state 0 1 how do i test it in VNA??
  2. M

    How to measure digital phase shifter

    Hi, I've been designing 2-bit phase shifter based on microstrip, all i want to ask is how to measure the phase shifter to gain the S-parameter? Thanks
  3. M

    Biasng Network For RF switch

    hi tony_lth thanks for the reply but in the datasheet there's no explanation of using capacitor on the v1 and v2 port?? and how about on the RFin port, is it need capacitor too?? thanks
  4. M

    Biasng Network For RF switch

    hi,, what if this switch : MASWSS0180, does this switch need bypass capacitor on v1 and v2 too?? thanks
  5. M

    Biasng Network For RF switch

    hi rf1008 appreciate the reply yeah maybe i'm confusing about bias network so my question isn't quite clear but can i use high impdance microstrip line instead of bypass capacitor? thanks
  6. M

    Biasng Network For RF switch

    Hi I want to design a phase shifter using microstrip that worked at 2.4 GHz and using MASWSS0136 as switch what i want to ask is how to design a bias network for MASWSS0136 switch??? so far what i've been searching is to use the λ/4 bias tee or radial stub but i guess the bias tee and radial...
  7. M

    Modelling SPDT switch in ADS

    Hi, shahsy.br and marco thank you so much for the help i'll try what you've been sugested thanks - - - Updated - - - Hi, shahsy.br and marco thank you so much for the help i'll try what you've been sugested thanks
  8. M

    Modelling SPDT switch in ADS

    yes i've seen that phase shifter but,here's my work so far in designing 3-bit switched line phase shifter i've already design each branch (reference state and delay line), and simulate it using schematic based on this link **broken link removed** the result is good. but i haven't design the...
  9. M

    Modelling SPDT switch in ADS

    hi thanks for the reply this is my requirement the frequency operation is 2.4 Ghz the phase shifter is 3-bit so there's 8 phase state
  10. M

    Modelling SPDT switch in ADS

    hi shashy.br thank you for the reply it is very helpful but what do you mean by draw?? i mean what should i draw?? and how?? i know how to draw a microstrip line but is it the same?? or there's another technique??
  11. M

    Modelling SPDT switch in ADS

    Hi marco, thanks for the reply i get the idea, but i'm kinda new in using ADS so how exactly the procedure is done in ADS??
  12. M

    Modelling SPDT switch in ADS

    Hi i want to design a phase shifter in microstrip and i want to use macomtech MASWSS0192 SPDT switch what i want to ask is how can i modeling the SPDT switch in ADS?? here's the datasheet
  13. M

    Stepped Impedance Lowpass Filter in ADS

    Hi Big Boss thx for the reply but how to decide the length of the 50 ohm ms line??? i tried to use linecalc in ads and tried an arbitrary length of microstrip line then i simulate it but the result is still far from the scematic result.
  14. M

    Stepped Impedance Lowpass Filter in ADS

    Hi.. i'm currently designing LPF using stepped impedance that operate at 9.4 GHz and also i want my LPF have constant 90° phase shift at 9.4 GHz so after i have the L-C value, i transform it to microstrip with dielectric constant (εr) = 2.33 dielectric thickness (h) = 0.787 mm and Zlow =...
  15. M

    Need Help in trace separation

    hi per_lube thx for the reply yes, i have access ADS software, but we need to input the trace separation (s), so how to calculate the trace separation between two microstril lines because i still don't know how to calculate it. from all book that i've read like inder bahl, jia-sheng and pozar...

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