Recent Advances in Engineering Mathematics and Physics by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030398477
Publisher: Springer International Publishing

The maximum measured amplitude imbalance of the insertion loss, as shown in Fig. 5, is ±0.5 dB.

Fig. 5Simulated insertion loss of the proposed SIW radial power combiner

The total insertion loss is calculated by substituting the measured values for Sj1; j = 2; 3; ⋯; n + 1 into

(4)

As shown in Fig. 5, it is clear that maximum insertion loss of the proposed SIW radial power combiner with isolation sidewall length (L) is less than 1 dB in the operating band.

4 Conclusions

In this chapter, a four-way radial power combiner is designed and analyzed using double via row SIW structure technique. Through simulation, good improvement in isolation between adjacent peripheral ports can be obtained due to the metallic isolated walls, which were inserted symmetrically in the radial line section. The double via row configuration improved the results because it provides a reduction in leakage and improved power handling capability for the proposed radial power combiner [18]. In future work, the proposed radial power combiner will be fabricated using traditional PCB fabrication facility. Moreover, the optimization of sidewall length L will be established using evolutionary algorithms.

References

1.

Cripps, S. (2006). RF power amplifiers for wireless communications (2nd ed.). Norwood: Artech House.

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