X hits on this document

56 views

0 shares

0 downloads

0 comments

13 / 15

Design Note DN033

5 Conclusion

AMD1103-ST01 antenna presented in this document performs well in the 868 MHz and 915 MHz ISM band; 955 MHz frequency band is also recommended for this antenna. Table 6 lists main results measured on the presented antenna. Note that the gain numbers are given in dBd and the formula converting it to dBi is shown in Equation 1.

The antenna can also be used at lower frequencies such as 433 MHz but then the efficiency of the antenna will be lower [4] compared to operation at 868 MHz [3]. The measurements performed on the CC-Antenna-DK with the Mitsubishi antenna are similar to the measurements performed on the CC1101-Q1 Evaluation Module.

868MHz BW (VSWR

2)

915MHz BW (VSWR

2)

868MHz 3 plane total average power 915MHz 3 plane total average power Antenna Size

68 MHz 80 MHz

    • -

      3.7 dBd

    • -

      3.6 dBd

      • 10.5

        mm 3.0mm 0.8m

Table 6. 915 MHz Summary of Antenna Properties

dBi = dBd + 2.14

Equation 1. Conversion to dBi

SWRA307A

Page 13 of 14

Document info
Document views56
Page views56
Page last viewedThu Jan 19 19:50:12 UTC 2017
Pages15
Paragraphs332
Words2750

Comments