 |
|
|
|
以作者查詢圖書館館藏 、以作者查詢臺灣博碩士 、以作者查詢全國書目 、勘誤回報 、線上人數：36 、訪客IP：18.224.30.86
姓名 周光宗(CHOU, KUANG-TSUNG) 查詢紙本館藏 畢業系所 電機工程學系 論文名稱 應用於全球定位系統之微小型頻率可重構圓極化天線設計
(Design of Reconfigurable Circularly Polarized Small Antenna for GPS Applications)相關論文 檔案 [Endnote RIS 格式]
[相關文章]
[文章引用]
[完整記錄]
[館藏目錄]
[檢視]
- 本電子論文使用權限為同意立即開放。
- 已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
- 請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。
摘要(中) 本論文設計出一支應用衛星定位系統(GPS)之天線。一般衛星訊號接是以圓極化的方式來接收避免多重路徑反射的干擾以及法拉地旋轉的效應，操作頻帶主要以能覆蓋於GPS 的L1 (1.575 GHz)頻段以及L3(1.381 GHz)的頻段為主。製作過程中主要會利用 HFSS 軟體來進行天線模擬與設計，並藉用網路分析儀測量實作天線的特性。
本天線設計於 FR-4 基板上，天線尺寸為 12.4×12.4×0.8 mm3，目標天線以 50 毆姆同軸電纜做為天線之饋入結構。藉由使用單極天線(Monopole)饋入外加一M形寄生原件使天線可以激發兩個正交模態，再利用接地面不等長的特性，使兩個正交模態產生 90 度的向位差，進而達成圓極化的效果。並且，在天線與接地面之間焊上一顆SMD0201型可變電容，利用改變偏壓可改變容值的特性，達成天現頻率可重置的目的。
天線頻寬以-6dB 以下反射損失的定義下達成在低頻帶可以涵蓋GPS L3 (1.381 GHz)頻段達到29 MHz的絕對頻寬，而高頻部分可以在GPS L1 (1.575 GHz)頻段擁有45 MHz的絕對頻寬，皆有達到GPS天線24 MHz絕對頻寬之要求。
天線在電磁波無反射室內量到的遠場響應中，L1與L3頻段皆是以右手圓極化輻射，並且增益皆大於 0 dBic。摘要(英)
The designs of antennas for global satellite positioning system (GPS) are presented in the thesis. Generally, the satellite signal is circularly polarized to avoid the interference of multiple path reflections and the Faraday rotation. The operating frequency is designed to cover the band of L1 (1.575 GHz) and L3 (1.381 GHz). In the designing process HFSS software for antenna simulation and design will be used, and the network analyzer will be applied for measuring the characteristics of the implementation of the antenna.
The antenna is designed on the FR-4 substrate with the size of 12.4 × 12.4 × 0.8 mm3, and fed by a 50-Ω mini-cable. The monopole feed with an M-shaped parasitic element makes the antenna resonate with two orthogonal modes. With the 90 degrees phase difference set up by the characteristics of the unequal length of the ground plane, a circularly polarized radiation pattern is generated. A SMD0201 varactor is added to the antenna and the ground plane to change the operating frequency by changing the bias voltage on the M-shaped parasitic element.
The antenna bandwidth based on the 6-dB reflection coefficient are 29 MHz in the GPS L3 (1.381 GHz) band, and 45 MHz in the GPS L1 (1.575 GHz) band, which meets the bandwidth requirements of 24 MHz in GPS applications. The far-field response of the antenna is measured in the antenna measurement chamber. Both of the L1 and L3 bands radiate a right-hand circularly polarized EM wave, and the gain are greater than 0 dBic.關鍵字(中) ★ 頻率可重置
★ 微小化
★ 全球定位系統
★ 圓極化
★ 天線關鍵字(英) 論文目次
目 錄
頁次
摘要 ............................................ i
Abstract ....................................... ii
致謝 ............................................iii
圖目錄 ............................................vi
表目錄.............................................xi
第一章 緒論 ....................................... 1
1-1 研究動機 ....................................... 1
1-2 文獻回顧 ..................................2
1-3章節介紹.................................. 4
第二章 天線原理與參數介紹.........................5
2-1 天線原理簡介................................. 5
2-2 倒F型天線................................. 7
2-3 單極天線.................................… 10
2-4 圓極化原理................................… 12
第三章 微小型圓極化GPS天線之設計與分析.............. 15
3-1 簡介.......................................15
3-2 單頻線型共振天線............................... 16
3-3 相位延遲的產生..............................19
3-4 圓極化的輻射...............................24
3-5 微小型圓極化GPS天線......................28
3-6 圓極化GPS天線的參數分析.................33
3-6-1 參數a..........................................34
3-6-2 參數R1x...............................36
3-6-3 參數R1y.............................39
3-6-4 參數R2..............................42
3-6-5 參數wgx.................................45
3-6-6 參數wgy...............................48
3-6-7 參數C1..............................51
3-6-8 參數C2..................................54
3-6-9 參數C3.....................................56
3-7模擬與量測結果.............................58
3-8結論....................................62
第四章 頻率可重置圓極化GPS天線設計.............63
4-1 簡介.......................................63
4-2 天線的設計.................................64
4-3模擬與量測結果.............................69
4-4結論.....................................74
第五章 總結................................... 75
參考文獻........................................76
附錄...........................................79參考文獻
[1]
C. Hung and T. Chiu, "Dual-Band Reconfigurable Antenna Design Using Slot-Line With Branch Edge," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 2, pp. 508-516, Feb. 2015.
[2]
T. Chiu, C. Hung and K. Hsu, "Reconfigurable resonant module for multi-band antenna design," in IET Microwaves, Antennas & Propagation, vol. 10, no. 3, pp. 326-332, 2 19 2016.
[3]
陳昱瑋，”利用低剖面金屬背腔單向輻射之寬頻圓極化槽孔天線設計”，碩士論文，國立中央大學，桃園，2016.
[4]
W. J. Liao, J. T. Yeh and S. H. Chang, "Circularly Polarized Chip Antenna Design for GPS Reception on Handsets," in IEEE Transactions on Antennas and Propagation, vol. 62, no. 7, pp. 3482-3489, July 2014.
[5]
S. H. Chang and W. J. Liao, "A Novel Dual Band Circularly Polarized GNSS Antenna for Handheld Devices," in IEEE Transactions on Antennas and Propagation, vol. 61, no. 2, pp. 555-562, Feb. 2013.
[6]
Z. H. Tu and Q. X. Chu, "Compact circular polarized antenna for GPS and CNSS applications," 2010 Asia-Pacific Microwave Conference, Yokohama, 2010, pp. 622-625.
[7]
C. Sun, H. Zheng and Y. Liu, "Compact dual-band circularly polarised GNSS antenna," in Electronics Letters, vol. 51, no. 20, pp. 1559-1560, 10 1 2015.
[8]
Z. Liang, Y. Li and Y. Long, "Multiband Monopole Mobile Phone Antenna With Circular Polarization for GNSS Application," in IEEE Transactions on Antennas and Propagation, vol. 62, no. 4, pp. 1910-1917, April 2014.
[9]
M. Elsdon, A. Sambell, S. C. Gao and Y. Qin, "Compact circular polarised patch antenna with relaxed manufacturing tolerance and improved axial ratio bandwidth," in Electronics Letters, vol. 39, no. 18, pp. 1296-1298, 4 Sept. 2003.
[10]
Nasimuddin, Z. N. Chen and X. Qing, "Slotted Microstrip Antennas for Circular Polarization with Compact Size," in IEEE Antennas and Propagation Magazine, vol. 55, no. 2, pp. 124-137, April 2013.
[11]
P. R. Prajapati, G. G. K. Murthy, A. Patnaik and M. V. Kartikeyan, "Design and testing of a compact circularly polarised microstrip antenna with fractal defected ground structure for L-band applications," in IET Microwaves, Antennas & Propagation, vol. 9, no. 11, pp. 1179-1185, 8 20 2015.
[12]
N. Kushwaha and R. Kumar, "Compact coplanar waveguide-fed wideband circular polarised antenna for navigation and wireless applications," in IET Microwaves, Antennas & Propagation, vol. 9, no. 14, pp. 1533-1539, 11 19 2015.
[13]
R. Cao and S. C. Yu, "Wideband Compact CPW-Fed Circularly Polarized Antenna for Universal UHF RFID Reader," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 9, pp. 4148-4151, Sept. 2015.
[14]
Nasimuddin, Z. N. Chen and X. Qing, "Slotted Microstrip Antennas for Circular Polarization with Compact Size," in IEEE Antennas and Propagation Magazine, vol. 55, no. 2, pp. 124-137, April 2013.
[15]
陳振榮，”應用於無線網路的小型化雙向指叉式雙頻天線設計”，碩士論文，國立中央大學，桃園，2016.
[16]
黃俊瑜，”利用微小共振電路之多頻段天線設計”，碩士論文，國立中央大學，桃園，2014.指導教授 丘增杰 審核日期 2017-7-26 推文 plurk
funp
live
udn
HD
myshare
netvibes
friend
youpush
delicious
baidu
網路書籤 Google bookmarks
del.icio.us
hemidemi
facebook
twitter
google
reddit