S parameter (300kHz-12GHz)

Hi Carmen,

                  HMC465LP5 has 30 KHz to 9 GHz S-Par data. Bottom of the first TPC page.

HMC998APM5E has 100 KHz to 9 GHz S-Par data. Top of the first TPC page.

HMC930A-DIe has 30KHz to 3 GHz S-Par data. Fig 11.

HMC460LC5 has 30 KHz to 1GHz S-Par data. Bottom of the first TPC page.

 HMC459-DIE has 30 KHz to 9 GHz S-Par data. Bottom of the first TPC page.

HMC797APM5E, HMC5805A, have nothing internal that would prevent operation down to dc. But were not measured at the lower frequency band.

 HMC465LP5- All 3 files are starting with 0.05GHz to 25.999GHz. Please help advise what did i miss?

Hi Jim,

Following this discussion, I would like to ask if you know the external bias tee they are using to get these results at low frequencies (inductor and capacitor). There is no related information in the datasheet, just a basic schematic diagram.

Thanks in advance.

Best regards,

Noelia

Hi Noelia,

                Connecterized bias tee was used during characterization.

Attached is data sheet for a typical lab bias tee we use.

Regards,

Jim B

PDF

Hi Jim,

Thanks for your quick response. In this case I need to use SMD/die components, but it is still useful to see the datasheet of the lab bias tee you use. Thanks!

My bandwidth starts at 1MHz and, unfortunately, RF commercial choke inductors are usually characterized from 10MHz.

Best regards,

Noelia

Hi Noelia,

                 You might wish to review this app note.

AN-2061: Wideband Bias Tee Design Using 0402 SMD Components | Analog Devices

Regards,

Jim B

Hi Jim.

Thanks for the application note. It is indeed very interesting. This solution using 3 inductors may work at 1MHz.

Regards,

Noelia

Thanks so much Jim, by the way, i can't any RF power detector falls within 300kHz-12GHz. Do you have any recommendation?

Hi Carmen,

                   We have some peak detectors that cover 0 to 6 GHz. That is as wide banded as I see on the ADI website. ADL5511, ADL5904, ADL5910, are a few  that I find. Perhaps you could create a diode detection circuit.

Regards,

Jim B

Thanks for the info, Jim. We are wondering if the HMC1013LP4E SDLVA can be used as a log detector in our ALC chain? And does ADI offer any solution on the diode detection circuit?

Hi Carmen,

                     THE HMC1013LP4E has a lower frequency limit of 100 MHz. I will have to check,  I don't think ADI has any diode detectors.

Regards,

Jim B

Thanks Jim, looking forward hearing soon you soon if there's any. Really thanks for your great help.

Thanks Jim, looking forward hearing soon you soon if there's any. Really thanks for your great help.

HMC1013 will go as low as 500 MHz.

There are no detectors that cover 300 KHZ to 12 GHz, that I'm aware of. You will most likely need to have two detectors one for LF and one for the higher freqs. The power detector circuits are getting beyond my scope.

Regards,

Jim B

Hi Carmen,

It's true, Analog Devices does not have any one diode detector that covers 300k to 12GHz. You might consider LTC5532 or LTC5564 for the high frequencies, and LTC5507 for the low frequencies.   -Bruce H.

Thanks for your response Bruce :)

Do you have any advise on the power detector circuit?

Forgot to mention, we are looking for a power detector that has a dynamic range of <62dB. That makes it very hard for the likes of LTC5532 and LTC5564 to meet our requirements. That is the reason why the SDLVA looked so promising to us, high dynamic range, wide frequency bandwidth, as we are also avoiding to split the detector circuits to LF and HF due to board footprint considerations. Please let us know more info on the SDLVA and its application. We will only split the circuit into LF and HF as a last resort. 

May I know what the typical application of the  HMC1013LP4E SDLVA? We intend to use it as a power detector in our levelling chain due to its high dynamic range and frequency bandwidth, but couldn't find any prior examples that people are using them in such applications.