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 |
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