本論文包含兩項獨立研究主題。第一部份為「以相位可重置合成傳輸線實現場型重置天線」。首先，本論文提出一款相位可重置合成傳輸線，並引入變容二極體做為調整機制，藉由施加不同之逆向偏壓，可使該傳輸線段，於單一操作頻率下，表現為兩種迥異之電氣長度，並且維持良好之匹配與傳輸特性。
接著，吾人以此可重置傳輸線作為延伸，並整合威爾金森功率分配器，於單一操作頻率下，可實現功率等分，且具備同相/反相之輸出相位選擇。又，提出一款獨創之雙埠天線，配合該「可切換式功率分配器」，成功實現單頻場型可重置效能。經過實驗量測，充分驗證該天線可切換為全向性場型與指向性場型。
第二部份為「雙天線整合相位陣列之晶片化研究」。該整合系統於低頻帶操作為信號回溯陣列，而高頻帶則為波束切換陣列，此系統之功能切換，無須藉由任何主動元件，而是以一款獨創之雙模態響應合成傳輸線達成。若與前人所提出之數款整合相位陣列系統比較，此系統有效簡化異質整合系統之複雜饋入網路。又，引入整合被動元件晶片製程，可更進一步縮小面積，實現真正的電路微型化。再者，吾人將該微型化晶片以鎊線連接於印刷電路板進行量測，並得到良好電氣特性，可充分顯示其與電路板整合之潛力，有利於未來實現搭載於無線行動通訊裝置之目標。

This thesis consists of two independent researches. In the first part, a pattern reconfigurable antenna using phase reconfigurable synthesized transmission line (PR-STL) is proposed. The phase reconfigurable STL, whose electrical length can be switched between two states, while characteristic impedance remains in a fixed value, can function as a 1-bit phase switch; it is then loaded at the output of a wilkinson power divider to achieve a switchable output phase.
On the other hand, a two-port antenna is also designed. The novelty is that, with its unique structure, the radiation mechanism of the antenna is a combination of dipole and monopole antenna. Furthermore, by integrated the two-port antenna with the switchable power divider, a pattern reconfigurable antenna is then developed. The experiment results verify the proposed antenna can switch between an omnidirectional and directional pattern.
Secondly, a on-chip two-element integrated phased array using integrated passive device (IPD) process is studied. The integrated network is operated as a retro-directive array (RDA) at lower operating frequency, and a beam-switching phased array at higher operating frequency. This dual-mode network is realized by using a novel composite right/left-handed synthesized transmission lines, whose characteristic impedance and phase can be independently designed at two arbitrarily chosen frequencies. Moreover, the IPD process is introduced to achieve remarkable circuit miniaturization. Measured responses is comparable to that previously fabricated on printed circuit board (PCB).

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