本研究之主旨，乃首次嘗試以超穎物質零階共振器研製新型自振式主動集成天線。該創新設計之基礎，乃以超穎物質零階共振器搭配交錯耦合對之主動電路，使迴授振盪器可在零相移之零階模態產生振盪。
本論文共提出兩款設計。首款零階共振器自振式主動天線，乃以零階共振器為天線輻射體，並利用交錯耦合對中，兩顆電晶體之閘、汲極間零相位之特性，差滿足起振條件，使主動天線於共振器零階模態產生振盪，成功實現新款自振式主動天線。該自振式主動天線亦與簡易直流轉換器結合，擺脫以往使用實驗用電源供應器之限制，提升其機動性，並提出綠色能源之概念。
其次，為實現雙模態可重置化自振式主動天線之概念，乃以前一款設計為基礎，以不同電路佈局實現另一款零階共振器，復利用其結構上的差異，使之易於重整佈局為一負μ共振器(MNG)，以產生+1模態共振，搭配適當之主動電路，即可產生另一振盪頻率。為確認此一整合概念之可行性，本論文先將此兩款設計個別製作，待日後再進行整合。

A novel metamaterial-based self-oscillating active integrated antenna (AIA) using zeroth-order resonators is developed in this thesis. For the first time, the zeroth-order resonators are connected to a cross-coupled pair to stabilize the oscillation near the zeroth-order resonance of a metamaterial resonator.
Two designs are developed in this thesis. First of all, a novel self-oscillating AIA based on zeroth-order resonators is proposed. The connecting line between the gate and the other drain terminals in a cross-coupled pair is broken up to insert a zeroth-order resonator in between. By utilizing the zero-phase-shift property of a zeroth-order resonator, the phase of the feedback loop is zero and the oscillation starts. The oscillation parameters are investigated in details. A DC converter is also integrated with the AIA to serve as the dc bias network. It hence gets rid of the bulky power supply used in laboratory demonstration.
Secondly, to achieve frequency reconfigurable self-oscillating AIA, the circuit layout of the previous case is re-investigated to develop another zeroth-order resonator. Different from the former design, in the latter case, by disconnecting the shunt inductance, the metamaterial resonator also facilitates +1 mode operation as a negative μ resonator (MNG). It hence generates another oscillation at a higher frequency. The two oscillation modes are separately investigated by experiments in this thesis, and the full integration will be a topic for future study

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