(For USM Staff/Student Only)

EngLib USM > Ω School of Electrical & Electronic Engineering >

Miniaturized broadside-coupled split ring resonator filter for compact wireless applications/ Peh Tee Howe

Miniaturized broadside-coupled split ring resonator filter for compact wireless applications_Peh Tee Howe_E3_2017_MYMY
Teknologi gelombang mikro masa kini mempunyai fokus dalam pengecilan penyalun. Pengecilan penyalun adalah penting untuk reka bentuk litar frekuensi tinggi dalam saiz yang kecil. Sejenis teknik baru penapis gelang belah sisi lebar terganding bersaiz kecil dikaji dengan meningkatkan tahap kemuatan penyalun dengan menggunakan pemuat di atas setiap bulatan berasingan untuk mengurangkan frekuensi penyalun. Penapis gelang belah sisi lebar kecil dengan frekuensi 1 GHz direalisasikan dan pengecilan sebanyak 27.17 % dicapai dengan menggunakan pemuat bernilai 0.7 pF, berbanding dengan penapis yang tidak dibeban dengan pemuat. Penapis ini juga menunjukkan prestasi penularan jalur lurus sempit sebanyak 1.65 % pecahan lebar jalur dan penolakan atas frekuensi sehingga 5.1f0. Cara baru untuk merangsang penyalun juga diselidik dengan teknik talian penghantaran maju dengan menyertakan interaksi substrat berlapis-lapis. Sebanyak sepuluh sampel penapis gelang belah penyalun sisi lebar kecil terganding dengan pemuat difabrikasikan, diukur dan dianalisiskan dari segi perubahan dan menunjukkan prestasi tentukur sebanyak 0.52 % berbanding dengan rekaan awal. Satu sampel diuji dari segi suhu sejuk dan panas dan menunjukkan ia mempunyai pemalar haba yang baik dan perubahan sebanyak 0.6 MHz. Akhirnya, kebolehlaksanaan penapis penyalun gelang patah sisi lebar terganding bersaiz kecil dibincangkan serta pertimbangan untuk pelaksanaan dicadangkan dan dibentangkan. __________________________________________________________________________________ The current microwave technology state of the art has been focused on the miniaturization of resonator. The importance of resonator miniaturization is based on the need to implement high frequency circuits in a compact form factor. A novel version of broadside-coupled split ring resonator (BC-SRR) is explored in this thesis by using a method of enhancing the resonators’ capacitance by loading a surface mount capacitor on each individual rings that leads to reduction of resonant frequencies. A miniaturized BC-SRR filter with center frequency of 1 GHz is realized and achieved a miniaturization of 27.17 % by using 0.7 pF surface mount capacitors as compared to a filter that does not use a capacitor. The filter also exhibits a narrowband passband transmission response of 1.65 % fractional band width and excellent upper stopband rejection up to 5.1f0. A novel method to excite the resonator is explored by using advanced transmission line design technique that incorporates multi-layer interaction. Ten samples of capacitor-loaded BC-SRR filter is developed, measured and analyzed in terms of variation and shows excellent tolerance performance with 0.52 % frequency offset from initial design. A single sample is subjected to extreme cold and hot temperatures and show excellent thermal coefficient property with as much as 0.6 MHz passband response shift at both temperature extremes. Finally, the feasibility of using capacitors to further miniaturize broadside-coupled split ring resonator (BCSRR) filter is discussed and recommendations of implementation is proposed and presented.
Contributor(s):
Peh Tee Howe - Author
Primary Item Type:
Thesis
Identifiers:
Accession Number : 875008384
Language:
English
Subject Keywords:
BC-SRR filter; resonator; miniaturized
Sponsor - Description:
Pusat Pengajian Kejuruteraan Elektrik & Elektronik -
First presented to the public:
4/1/2017
Original Publication Date:
10/24/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 119
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-10-24 15:07:49.639
Date Last Updated
2020-11-13 11:35:05.518
Submitter:
Mohamed Yunus Yusof

All Versions

Thumbnail Name Version Created Date
Miniaturized broadside-coupled split ring resonator filter for compact wireless applications/ Peh Tee Howe1 2019-10-24 15:07:49.639