本論文設計一雙頻高增益全向性天線，採用並聯陣列和串聯陣列來完成此設計。第二章使用並聯式陣列的架構，透過推疊的方式，擠壓天線場型，使天線增益提升，達到高增益的效果。使用並聯式陣列天線架構，需設計成每個單元間會向位差為零，這樣才可達到高增益的效果。因設計所需天線面積較大，故第三章將天線設計為線性推疊式陣列天線架構，設計架構簡易且能到高增益全向性場型，但由於陣列形式的天線的設計，必須克服頻寬窄、輻射效率較低及增益大小有限等問題，每個單元間需使用微帶線連接，為降低線路的損耗，板材必須使用介電係數較低的材質來製作，使天線特性能夠最佳化，大幅增加了天線的成本。
本文第四章為了改善陣列架構的缺點，降低天線成本，克服頻寬窄、輻射效率較低及增益大小有限等問題，將天線材質設定為FR4，並改變天線設計為螺旋式偶極天線，設計架構簡易且能減少微帶線所造成的損耗，降低天線成本，達到寬頻高增益並全向性的特性。

關鍵字:並聯式陣列、線性推疊式陣列天線、螺旋天線

SUMMARY
Based on the above results, although a variety of architecture has its own advantages, but if based on performance and price considerations, will choose a third architecture design direction, not because of the design factors microstrip lines, resulting in efficiency gains and simulation gap, this architecture is easier to adjust the conditions to meet the requirements, it could save development costs and improve work efficiency.
Keywords: Parallel array, linear and stack-based array antenna, helical antenna
INTRODUCTION
Increasing application of wireless transmission advances, it has been inseparable from the web of life. Booming popularity of smartphones and the rise of a large number of transmission and application data, the phone is no longer just a device to call, as if into a portable computer, will increase the user's wireless network dependent. Remote monitoring, intelligent home appliances make life more closely with wireless transmission, the signal of the user requirements are relatively improved, not only to be able to load a lot of influence transmission, but also to the future development of quality reception without dead ends, but also wireless products aims.
MATERIALS AND METHODS
The paper designs a dual band High-Gain Omin-Directional antenna and adopts the parallel array and the series array to fulfill this design. In the first chapter, it uses the framework of the parallel array and a stack-based method to squeeze the antenna field. Thus, the antenna gain is improved and achieves the effect of high gain. With the antenna framework of parallel array, the phase difference between each unit shall be designed to be zero so as to reach the high gain result. For the reason that the required area of antenna for design is relatively large, the third chapter designs the antenna into an antenna framework of linear and stack-based array. This designed framework is easy and reaches the high gain omni field. Nevertheless, due to the design of array antenna, problems like narrow bands, the relatively low radiant efficiency and gains shall be solved. Units shall be connected with each other by microstrip lines. Furthermore, in order to decrease the loss of circuits, one shall use materials with low dielectric coefficient to make panels and optimize the antenna performance. This, however, substantially increases costs of antennas.

RESULTS AND DISCUSSION
In order to improve shortcomings of the array framework, decrease costs of antennas and solve problems like narrow bands, the relatively low radiant efficiency and gains, the fourth chapter of this paper sets the materials of antennas as FR4 and change the design of antennas as helical antenna. The easy design of framework can decrease the loss caused by microstrip lines and reduce costs of antennas to achieve the character of broadband, high-gain and Omni-Directional.
CONCLUSION
The third architecture design direction, not because of the design factors microstrip lines, resulting in efficiency gains and analog gap, this architecture is easier to adjust, meet the required conditions, they could save development costs and improve work efficiency.

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