erikl
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Today, 11:07pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticshi pancho_hideboo, finally I manage to figure out myself the noise folding. i would like to share it here for the benefit of others. ...20 replies | 114 view(s) -
Today, 09:49pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticsthis is what I also said in my statement. I stated the noise bandwidth should not be different between the wideband mixer and narrowband mixer. you...20 replies | 114 view(s)
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Today, 09:38pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticsis this folding noise is similar to noise bandwidth reduction which i have explained above?20 replies | 114 view(s)
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Today, 09:13pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticsfor a wideband LNA/Mixer, i think there is no direct effect on receiver sensitivity. however, the wideband LNA/Mixer prone to spurs/harmonics/image...20 replies | 114 view(s)
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Today, 09:10pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticsmaybe not. Receiver always receive/operate in a single frequency at a time. so the noise BW of a brandband LNA/Mixer will be similar to noise...20 replies | 114 view(s)
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Today, 08:59pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticshi guys, let me put what pancho_hidebo said in a different way. receiver sensitivity is given by; Receiver Sensitivity=-174dBm+10 log(noise...20 replies | 114 view(s)
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Today, 07:54i think i know the cause of your problem. currently the ground plane of the patch is at the outer area and your patch itself is touching the frame....13 replies | 224 view(s)
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Today, 07:48pragash replied to a thread Drawbacks of Broadband LNA and Mixer in RF, Microwave, Antennas and Opticscould you give me some material or explanation on folding noise? is it similar to noise folding?20 replies | 114 view(s)
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Today, 07:28usually designers will have size constraints. i believe you have your satellite size constraint. i wont be able to tell how much space you need...13 replies | 224 view(s)
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Today, 07:24Many companies implements "off the shelf" components for their RF chains such us mixer chip and LNA chip. The problem with off the shelf components...20 replies | 114 view(s)
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Today, 07:08you have to set your frequency of simulation wide enough to cover both frequencies. after simulation the results will appear and you can easily check...1 replies | 30 view(s)
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Today, 07:05pragash started a thread Charge for redesign of a receiver chain in RF, Microwave, Antennas and Opticsi would like to know how much usually design services companies will charge for work. The S-band receiver chain with a postselector Filter, two...0 replies | 27 view(s)
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Today, 06:54you have to retune the antenna with the frame attached. meaning you have to reoptimize the antenna with the frame attached. adjust the parameters of...13 replies | 224 view(s)
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Today, 06:11clearly ground plane of the CubeSat does affect your patch antenna. Initial resonance is at 1.2GHz, got shifted with the frame is attached. I...13 replies | 224 view(s)
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Today, 03:21it's a good question. for patch antenna, results should not be affected by the ground plane of the CubeSat. - - - Updated - - - how...13 replies | 224 view(s)
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Yesterday, 15:19Hi, Where can I get the QFN72 package eagle model? Thanks.2 replies | 83 view(s)
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14th July 2018, 20:50erikl replied to a thread Fully differential Amplifier class AB in Analog Integrated Circuit (IC) Design, Layout and FabricationI don't think that a 10% deviation is a problem. Did you check the asymmetry at large-signal output voltage? Somewhere there is a (tiny)...1 replies | 105 view(s)
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13th July 2018, 17:48pragash replied to a thread GSG PAD CPW to Microstrip transistion for Layout in Electromagnetic Design and Simulationwhat do you mean by transistion?2 replies | 96 view(s)
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13th July 2018, 16:27erikl replied to a thread Disable to read "cds.lib" in Ocean Run. in Analog Integrated Circuit (IC) Design, Layout and FabricationAt least you found a good work around! So you don't have to weep any more ;-)3 replies | 273 view(s)
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13th July 2018, 08:21there is a way of laying out RF components to minimize the coupling between them. i have nvr heard of shielding for filters or any inductors. you can...15 replies | 226 view(s)
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13th July 2018, 08:00hi adnan, you can get initial guess component values from ADS. you can download s-parameter data of lumped element (L and C) from supplier website...15 replies | 226 view(s)
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13th July 2018, 07:09are you looking for chip filter solution or looking to design the filter yourself? if you looking to design it yourself, what help do you need?15 replies | 226 view(s)
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12th July 2018, 23:24vieha007Electronic replied to a thread Calibre PEX error during generating calibre view in Analog Integrated Circuit (IC) Design, Layout and FabricationThank you. I check that libddbase_sh.so is not missed. I am supported by a local-designated supports center so I could not resolve this using Mentor...2 replies | 122 view(s)
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12th July 2018, 15:34you are trying to do return loss (S11) measurement on a VNA. VNA have signal internally and it will inject the signal and measure the S11. make...6 replies | 163 view(s)
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12th July 2018, 15:20pragash replied to a thread Transmitter antenna for a particular frequency in RF, Microwave, Antennas and Opticsi would like to understand why are you designing your receiving circuit at 2.033GHz? the standard call for 915MHz and a lot of transmitters available...7 replies | 128 view(s)
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12th July 2018, 15:17i think you are referring to antenna radiation pattern. in order to measure antenna radiation pattern, you need anechoic chamber and spectrum...6 replies | 163 view(s)
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12th July 2018, 15:12pragash replied to a thread Simple LNA and LC matching circuits in RF, Microwave, Antennas and Opticsif im right, the mistake you are doing is not change the device impedance into complex conjugate. there are two ways you can match the device: 1)...2 replies | 78 view(s)
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12th July 2018, 15:04pragash replied to a thread Transmitter antenna for a particular frequency in RF, Microwave, Antennas and OpticsRF energy harvesting requires an antenna. It requires the 915MHz antenna. I have done consulting and design for RF energy harvesting with stringent...7 replies | 128 view(s)
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12th July 2018, 10:55LvW replied to a thread How to define opamp specs within an active-RC filter in Analog Circuit DesignYes - I only can strongly recommend the above given ref for active filter design (one small drawback: GIC-based designs are not covered).9 replies | 233 view(s) -
12th July 2018, 03:04shanmei started a thread Pipeline last stage gain in Analog Integrated Circuit (IC) Design, Layout and FabricationFor the pipeline adc gain weight of each stage, as shown in the figure, whether the gain of the last stage is "2", or "4"? Could you please explain?...0 replies | 63 view(s)
About erikl
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- Biography:
- designed (and layouted) analog cells and IP's in various CMOS processes
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- Germany
- Interests:
- analog design in CMOS
- Occupation:
- on my own
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