QUESTION

Question

With nRF9160 SiP it is recommended to use SR4L034-L /SR4L034-R. I have a max. 75x40 large board, but it will probably give me several problems with this size. I also use another GNSS antenna - ACAG0301-1575-T (Abracon).

Could you help me figure out on where I should place the SR4L034-L /SR4L034-R? Or do I need another antenna?
ACAG0301-1575-T (Abracon) should I keep it how far away from SR4L034-L /SR4L034-R?

Matching circuit what components should I use?

Antenna requirements for an IoT device using an nRF91 Series SiP are summarized.
50 Ω impedance

VSWR <3:1

Antenna Return Loss (RL) >6.0 dB

Efficiency >50%

Peak gain NA
Minimum power handling 1 W 

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Answer 1

Hi,

For such small board I would recommend our Pharaoh antenna and it will be placed on the short edge of the board. Keep the GNSS antennas as far as possible from the LTE antenna to improve isolation.

Best regards,

Yu Kai Yeung