AWRL6432: phase shift of lambda between AWRL6432boost RX channels

Takeo Sekiguchi

Part Number: AWRL6432

Hi,

Could you help to support followings?

[1] The captured raw data of L6432+mmWaveStudio+DCA1000 environment, there is a phase shift of lambda is observed between the RX channels. Is there any reason why this phase shift observed?

[2] Could you provide the trace length of L6432boost ANTs? Is this affect to phase shift of [1]?

Regards

Takeo

over 1 year ago

0 Kristien Everett over 1 year ago

TI__Genius 13276 points

Hey Takeo-san,

One of our experts on raw data collection will get back to you within the next day or two.

Thank you for your patience,

Kristien

0 zigang Yang over 1 year ago

TI__Mastermind 40495 points

HI, Takeo-san:

This phase shift is coming from the device and not due to Antenna.

There is a phase shift between RX and TX channels originating in the LO distribution network going to into internal Mixer.

Best,

Zigang

0 Takeo Sekiguchi over 1 year ago in reply to zigang Yang

TI__Expert 3305 points

Hi Zigang,

I'm sorry for late response, and one additional question. Could you help to support?

-What is the reason of phase shift existing between LO distribution network and internal Mixer?

Regards,

Takeo

0 zigang Yang over 1 year ago in reply to Takeo Sekiguchi

TI__Mastermind 40495 points

Hi, Takeo:

This 180 degree of phase shift is a artifact of design implementation, the phase shift can be easily correctable through the signal processing chain.

I am not sure what other information we can provide.

Best,

Zigang

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AWRL6432: phase shift of lambda between AWRL6432boost RX channels