Page 333 - System on Package_ Miniaturization of the Entire System

Radio Fr equency System-on-Package (RF SOP) 307

0.0
30.0 30.0

60.0 60.0

ϕ
(180−ϕ)
2.0 1.0 −1.0 −1.0 2.0
0.0 0.0
1.0

120.0 120.0

150.0 150.0
180.0
Inductivel, f = 0.915 (GHz), E-total, phl = 0 (deg)
Inductivel, f = 0.915 (GHz), E-total, phl = 90 (deg)
(a)
0.0
30.0 30.0

60.0 60.0

ϕ
(180−ϕ) 6.0
−4.0 −1.0 4.0 −4.0 6.0

120.0 120.0

159.0 159.0
180.0
Inductivel, f = 0.915 (GHz), E-total, phl = 0 (deg)
Inductivel, f = 0.915 (GHz), E-total, phl = 90 (deg)
(b)
FIGURE 5.43 Two dual radiating bodies RFID antennas with radiation patterns. (a) Directivity =
2.69 dBi, effi ciency = 86.8 percent. (b) Directivity = 5.62 dBi, effi ciency = 79.9 percent.