Research Article
Design of Active Integrated GNSS Antenna Based on the Impedance Transforming Quadrature Four-Feed Network
Table 1
Optimized circuit parameters of a rat-race coupler.
| | Parameter | Value |
| | Z11 | 65.5 Ω | | Z21 | 80 Ω | | Z3 | 55 Ω | | Z4 | 62 Ω | | Z13 | 61.6 Ω | | Z23 | 80 Ω | | Zo | 106 Ω | | Z0o | 26.4 Ω | | Z0e | 140.1 Ω | | θ11 | 13.1° | | θ21 | 12.1° | | θ3 | 13° | | θ4 | 33.1° | | θ13 | 14.3° | | θ23 | 9.7° | | θo | 10° | | θc | 48° | | C1 | 0.4 pF | | L1 | 11 nH |
|
|