eprintid: 143747 rev_number: 40 eprint_status: archive userid: 220599 dir: disk0/00/14/37/47 datestamp: 2025-10-21 10:28:53 lastmod: 2025-10-21 10:28:53 status_changed: 2025-10-21 10:28:53 type: thesis metadata_visibility: show creators_name: Raihan Satria Gamas, - creators_name: Agus Heri Setya Budi, - creators_name: Nurul Fahmi Arief Hakim, - creators_nim: NIM2100091 creators_nim: NIDN0026087207 creators_nim: NIDN0405099302 creators_id: sgraihan3183@upi.edu creators_id: agusheri@upi.edu creators_id: nurulfahmi@upi.edu contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_name: Agus Heri Setya Budi, - contributors_name: Nurul Fahmi Arief Hakim, - contributors_nidn: NIDN0026087207 contributors_nidn: NIDN0405099302 contributors_id: agusheri@upi.edu contributors_id: nurulfahmi@upi.edu title: DESAIN ANTENA SHUNT-FED ARRAY FREKUENSI K-BAND UNTUK RADAR FMCW ispublished: pub subjects: T1 subjects: TK divisions: JPTE full_text_status: restricted keywords: Radar FMCW, Frekuensi 24 GHz, Antena Mikrostrip, Shunt-fed Array, Pembobotan Dolph-Chebyshev FMCW Radar, 24 GHz Frequency, Microstrip Antenna, Shunt fed Array, Dolph-Chebyshev Weighting note: https://scholar.google.com/citations?hl=en&user=ejTm4AEAAAAJ&view_op=list_works&authuser=1&gmla=AH8HC4zat6bZQJ3BCj9QRpVbcOf2SI0z9M_duGwKlbjuRvkkxut7brwsMfUjHNqpf3Rx54BgFXyRhIfRG-KFLokk ID SINTA Dosen Pembimbing Agus Heri Setya Budi: 6003446 Nurul Fahmi Arief Hakim: 6725597 abstract: Radar FMCW (Frequency Modulated Continous Wave) merupakan jenis radar yang semakin banyak digunakan pada berbagai aplikasi. Pada radar FMCW dibutuhkan antena dengan karakteristik radiasi yang terarah dan side lobe level (SLL) rendah (≤-20 dB) untuk meningkatkan performa radar. Penelitian ini bertujuan untuk mendesain dan menguji coba performa antena mikrostrip patch array yang menerapkan metode pembentukan array dan pembobotan Dolph Chebyshev untuk menekan SLL dan mengatur -3 dB beamwidth antena. Perangkat lunak CST Microwave Studio digunakan pada proses desain dan optimasi antena. Antena difabrikasi menggunakan substrat RO4350B dengan ketebalan 0,254 mm yang selanjutnya diuji menggunakan VNA dan spectrum analyzer untuk mengetahui performa S11 dan pola radiasi antena. Desain antena yang diusulkan terdiri dari 32 elemen patch yang disusun dengan konfigurasi 4×8 shunt-fed array, digunakan metode pencatuan inset yang bertujuan untuk menyederhanakan saluran transmisi antena. Hasil pengukuran S11, menunjukkan bahwa antena dapat bekerja dengan baik pada frekuensi 22,719 GHz hingga 24,230 GHz yang menghasilkan bandwidth sebesar 1.511 MHz, frekuensi kerja antena fabrikasi yang didapat telah mencakup sebagian besar rentang frekuensi kerja band 24 GHz ISM dengan hanya 20 MHz yang berada di luar cakupan frekuensi kerja antena fabrikasi. Pola radiasi pada phi=0 menunjukkan SLL sebesar -19,29 dB dan -3 dB beamwidth sebesar 28,9°, pada phi=90 didapatkan SLL sebesar -0,9 dB dengan -3 dB beamwidth sebesar 36,02°. Perbandingan antara hasil simulasi dan pengukuran menunjukkan adanya pergeseran frekuensi kerja serta penurunan kualitas pola radiasi akibat ketidaksesuaian dimensi hasil fabrikasi dan kondisi lingkungan pengujian. FMCW (Frequency Modulated Continuous Wave) radar is a type of radar that is increasingly being used in various applications. In FMCW radar, an antenna with directional radiation characteristics and low side lobe level (SLL) (≤-20 dB) is required to enhance radar performance. This study aims to design and test the performance of a microstrip patch array antenna that employs the Dolph-Chebyshev array formation and weighting method to suppress SLL and adjust the antenna's -3 dB beamwidth. CST Microwave Studio software is used in the antenna design and optimization process. The antenna is fabricated using RO4350B substrate with a thickness of 0.254 mm and subsequently tested using a VNA and spectrum analyzer to determine the antenna's S11 performance and radiation pattern. The proposed antenna design consists of 32 patch elements arranged in a 4×8 shunt-fed array configuration, using an inset feeding method to simplify the antenna transmission channel. The S11 measurement results indicate that the antenna operates effectively at frequencies ranging from 22.719 GHz to 24.230 GHz, yielding a bandwidth of 1.511 MHz. The operating frequency range of the fabricated antenna covers most of the 24 GHz ISM band frequency range, with only 20 MHz falling outside the antenna's operating frequency range. The radiation pattern at phi=0 shows an SLL of -19.29 dB and a -3 dB beamwidth of 28.9°, while at phi=90, an SLL of -0.9 dB with a -3 dB beamwidth of 36.02° is obtained. A comparison between simulation results and measurements shows a shift in the operating frequency and a decrease in radiation pattern quality due to differences in fabrication dimensions and the conditions of the testing environment. date: 2025-08-13 date_type: published institution: Universitas Pendidikan Indonesia department: KODEPRODI20201#Teknik Elektro_S1 thesis_type: other thesis_name: other official_url: https://repository.upi.edu/ related_url_url: https://perpustakaan.upi.edu related_url_type: org citation: Raihan Satria Gamas, - and Agus Heri Setya Budi, - and Nurul Fahmi Arief Hakim, - (2025) DESAIN ANTENA SHUNT-FED ARRAY FREKUENSI K-BAND UNTUK RADAR FMCW. S1 thesis, Universitas Pendidikan Indonesia. document_url: http://repository.upi.edu/143747/8/S_TE_2100091_Title.pdf document_url: http://repository.upi.edu/143747/2/S_TE_2100091_Chapter1.pdf document_url: http://repository.upi.edu/143747/3/S_TE_2100091_Chapter2.pdf document_url: http://repository.upi.edu/143747/4/S_TE_2100091_Chapter3.pdf document_url: http://repository.upi.edu/143747/5/S_TE_2100091_Chapter4.pdf document_url: http://repository.upi.edu/143747/6/S_TE_2100091_Chapter5.pdf document_url: http://repository.upi.edu/143747/7/S_TE_2100091_Appendix.pdf