本論文探討具磁共振物理特性之被動式微波元件設計，並針對電感性耦合進行定性與定量電磁特性研究。論文中提出並闡述磁共振之強耦合模態以及抑制模態，進行理論與等效電路模型之探討。藉由分析磁共振等效電路模型，探討強耦合模態與抑制模態於頻率響應的差異，以及對應不同應用情境時，磁共振式微波元件的設計方法。
在論文中，首先說明磁共振所產生的物理機制以及相關電磁理論。此外，由消費性電子產品於電磁干擾優化與法規之說明，進而引導出本論文之磁共振式元件於電磁干擾抑制的設計與優勢。再者，比較近期具有高度商品化的無線傳能技術之差異，說明磁共振於射頻無線傳能系統進一步的優化設計對策。其次，藉由分析磁共振物理現象於頻率響應的特性，探討磁共振於特定頻帶，可使相鄰的兩個電感元件產生雜訊隔離度提升的效果。本論文提出磁共振抑制模態螺旋電感，強化螺旋電感之電磁干擾抑制能力。經實驗驗證於LTE-700通訊頻段，其中一款電感設計具有提升抗干擾能力超過20 dB的效果。論文中，使用全波電磁模擬分析電場與磁場純量、向量之分佈特徵。以定性分析，歸納磁共振機制存在引導與改變能量方向的特徵，並說明我們所提出之磁共振式螺旋電感電磁干擾抑制原理。
另一方面，本論文於探討磁共振強耦合模態的理論與設計，可應用於射頻無線傳能系統之開發。論文中，提出一款操作於特高頻頻段，具有磁共振強耦合模態之方向耦合器，可強化兩倍頻耦合量達22 dB的效果。藉由此一新型元件的提出並結合諧波雷達技術，開發具有偵測接收器天線極化方向的射頻無線傳能發射模組。
延續上述所提出的諧波雷達技術，亦因應進一步提升射頻無線傳能效率之目標，論文中整合相關技術與微波元件，開發一款新型射頻無線傳能模組。其具有改變傳能方向與偵測接收器位置兩大功能，可提高近四倍傳能效率之優勢。該模組亦有相當的產品商業化潛在優勢與應用價值。

The physical mechanisms of the magnetic resonance and the related microwave passive component designs are studied in this dissertation, especially for the magnetic resonance technology that is introduced in the inductive coupling circuits. To characterize the mechanisms of magnetic resonance, the equivalent circuit models and full-wave EM simulation results are provided for further qualitative and quantitative analyses. In addition, this dissertation proposes the passive component designs in the “suppressed coupling mode” for electromagnetic interference (EMI) suppressions and in the “enhanced coupling mode” for RF-based wireless power transfer (WPT) application.
At first, this dissertation, the physical mechanism of magnetic resonance is explained and the design principle of magnetic resonance for the passive components is described. Besides, the electromagnetic interference optimizations and the related EMI regulations for consumer electronics products are also addressed. For the implementations of magnetic resonance in wireless power transfer (WPT), three major methodologies are compared. Through the comparisons, the application and design methodology of magnetic resonance in RF-based WPT are exhibited.
Furthermore, by analyzing the characteristics of the magnetic resonance in frequency domain, the suppressed coupling mode in magnetic resonance is applied to enhance the capability of electromagnetic interference suppression for a planar spiral inductor. The proposed resonator-based inductor in our work achieves an EMI suppression enhancement in LTE-700 band with more than 20 dB. The mechanism of magnetic resonance exhibits the capabilities to guide the emission directions toward the resonator, which is used for EMI suppression enhancement.
In contrast, for the operation at the enhanced coupling mode, we propose a resonator-based directional coupler which can be integrated in RF-based WPT methodology. This novel resonator-based coupler operates at UHF band with enhancing the second-harmonic coupling by +22 dB. With the aid of the coupler, we develop a polarized harmonic radar feature which can be used in RF-based WPT with a function of receiver antenna polarization detection.
By the development of RF-based WPT with enhancing the transmission efficiency, we further design a phased array RF power emitter. This power emitter has some novel features by applying beamforming and location/direction detection. The proposed RF power emitter successfully exhibits an advantage of about 4 times of transmission efficiency enhancement. It can be integrated into an RF-based WPT system, which will have a great potential to be commercialized.

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