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Ditemukan 9973 dokumen yang sesuai dengan query
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Gunawan Wibisono
"A compact multiband bandpass filter (BPF) based on folded dual crossed open stubs (DCOS) is designed and analyzed. Two Crossed Open Stubs (COS) are used to generate concurrent six-band BPF, where the center frequency located at 0.95 GHz, 1.85 GHz, 2.65 GHz, 3.35 GHz, 4.375 GHz, and 5.25 GHz. The proposed BPF based on folded Dual Crossed Open Stubs (DCOS) is an expansion of tri-band BPF based on a single COS, where the second COS is used to generate second additional tri-band. To achieve miniaturization structure of proposed BPF, the DCOS is folded. The proposed BPF will be designed and analyzed by using Advanced System Design (ADS). The performances of multiband BPF which characterized by return loss, insertion loss, voltage standing wave ratio (VSWR), and group delay, are conducted by simulation, measurement and analysis. It is shown that the simulation and fabrication results of insertion loss, return loss, VSWR, and group delay of the proposed multiband BPF are satisfied to design requirements. However, the center frequencies of fabricated the proposed multiband BPF are shifted average to 5?30 MHz lead to simulated results. This is due to some errors in fabricated process including imperfect dimension of fabricated BPF, soldering between connector to substrate and cable losses."
Depok: Faculty of Engineering, Universitas Indonesia, 2014
UI-IJTECH 5:1 (2014)
Artikel Jurnal  Universitas Indonesia Library
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Achamd Budi Fathoni
"Pada penelitian ini dirancang mikrostrip bandpass filter multiband Untuk mendukung transceiver multiband pada frekuensi 900 MHz untuk GSM, 1,8 GHz untuk WCDMA, 2,6 GHz untuk LTE, 3,5 GHz untuk fixed-WiMAX, 4,3 GHz untuk WLAN dan 5,2 GHz untuk WLAN. Perancangan dimulai menggunakan single-COS, kemudian ditambahakan sebuah resonator (DCOS) sehingga menghasilkan frekuensi 6 band. Pembuatan mikrostrip filter multiband dengan mempergunakan teknik folded Dual Cross open stub yang merupakan optimasi bentuk COS untuk menghasilkan filter ukuran lebih sederhana dan compact namun dapat memiliki frekuensi kerja yang multiband. Hasil pengkuran menujukan Pada frekuensi GSM, nilai S11 900 MHz sebesar -34.4 dB. Pada frekuensi WCDMA, nilai S11 pada 1,8 GHz sebesar -30 dB. Pada frekuensi LTE, nilai S11 pada 2,6 GHz sebesar -25,4 dB. Pada frekuensi fixed-WiMAX, nilai S11 pada 3,450 GHz sebesar -24,2 dB. Pada frekuensi WLAN, nilai S11 pada 4,25 GHz sebesar -27.3 dB. Pada frekuensi WLAN, nilai S11 pada 5,2 GHz sebesar - 29,4 dB. Pada frekuensi GSM, nilai S21 900 MHz sebesar -0.22 dB. Pada frekuensi WCDMA, nilai S21 pada 1,8 GHz sebesar -0.45 dB. Pada frekuensi LTE, nilai S21 pada 2,6 GHz sebesar -0.74 dB. Pada frekuensi fixed-WiMAX, nilai S21 pada 3,450 GHz sebesar -1.3 dB. Pada frekuensi WLAN, nilai S21 pada 4,25 GHz sebesar -1.4 dB. Pada frekuensi WLAN, nilai S21 pada 5,2 GHz sebesar -1.9 dB. Penambahan cross open stub menjadi dual cross openstub menghasilkan frekuensi kerja sebanyak 6 buah. Sementara itu, hasil pengukuran menujukan multiband filter terjadi pergeseran frekuensi tengah sebesar 5-10 MHz. Dari hasil simulasi maupun pengukuran menunjukan bahwa BPF ini telah mencapai kinerja yang diharapkan sesuai frekuensi teknis yang ditetapkan.

In this research is designed microstrip bandpass filter to support multiband multiband transceiver at 900 MHz for GSM, WCDMA 1.8 GHz, 2.6 GHz for LTE, 3.5 GHz for fixed-WiMAX, 4.3 GHz for WLAN and 5,2 GHz for WLAN. The design starts using single-COS, then ditambahakan a resonator (DCOS) resulting in six frequency bands. Making multiband microstrip filter using the technique folded open stub Dual Cross which is the optimization of COS to filter sizes produce more simple and compact yet can have a multiband frequency work. Results pengkuran addressing the GSM frequency, 900 MHz S11 value of - 34.4 dB. In WCDMA frequency, the value of S11 at 1.8 GHz at -30 dB. In LTE frequency, the value of S11 at 2.6 GHz at -25.4 dB. In the fixed-WiMAX frequencies, the value of S11 at 3.450 GHz -24.2 dB. In the WLAN frequency, the value of S11 at 4.25 GHz at -27.3 dB. In the WLAN frequency, the value of S11 at 5.2 GHz -29.4 dB. At frequencies GSM 900 MHz S21 value of -0.22 dB. In WCDMA frequency, the value of S21 at 1.8 GHz of -0.45 dB. In LTE frequency, the value of S21 at 2.6 GHz of -0.74 dB. In the fixed-WiMAX frequencies, the value of S21 at 3.450 GHz of -1.3 dB. In the WLAN frequency, the value of S21 at 4.25 GHz of -1.4 dB. In the WLAN frequency, the value of S21 at 5.2 GHz of -1.9 dB. The addition of open stubs into a dual cross cross openstub generate frequencies up to 6 pieces of work. Meanwhile, the measurement results addressing multiband filter center frequency shift of 5-10 MHz. From the simulation results and measurements show that the BPF has achieved the expected performance according to established technical frequencies."
Depok: Fakultas Teknik Universitas Indonesia, 2012
T29997
UI - Tesis Open  Universitas Indonesia Library
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Budi Yasri
"Tesis ini meneliti tentang analisis kinerja ekspor non migas Indonesia ke Uni Eropa dan menganalisa beberapa faktor yang dipertimbangkan mempengaruhi kineja ekspor non migas Indonesia, antara lain tingkat pendapatan, nilai tukar riil dan tingkat daya saing (comparative advantage).
Model yang digunakan untuk estimasi dalam penelitian inl adalah adopsi dari penelitian yang dilakukan oleh Yue dan Hua (2002) yang menggunakan pendekatan indeks daya saing (Revealed Comparative Advantage) dan faktor-faktor lain yang mempengaruhi ekspor China (real exchange rate, pendapatan riil negara produsen, dan pendapatan riil partner dagang).
Penelitian ini menggunakan data panel dengan derot waktu 7 tahun (2000- 2006) dan unit cross section 7 negara Uni Eropa (UE) yaitu Belanda, Jerman, Inggris, Belgia, Italia, Spanyol dan Perancis. Dalam analisis data panel, pemilihan model estimasi yang efisien dilakukan meialui uji spesifikasi F-test untuk mengetahui adanya efek individu, kemudian uji Hausmann untuk menentukan Fixed Effect Mode! (FEM) atau Random Effect Model (REM) dan penelitian yang efisien untuk analisis faktor-faktor yang mempengaruhi kinerja ekspor non migas Indonesia ke UE adalah Fixed Effect Model
Hasil estimasi menunjukkan bahwa variabel pendapatan riil partner dagang (GDPP), daya saing kornoditi manufaktur (RCA1 ) dan daya saing komoditi pertambangan (RCAr) berpengaruh positif terhadap kinerja ekspor non migas Indonesia ke UE, sementara variabel nilai tukar rii1 (RER) dan daya saing komoditi pertanian (RCAp) berpengaruh secara negatif terhadap kinerja ekspor non migas Indonesia ke DE. Penelitian ini menyarankan stakeholders ekspor non migas Indonesia agar dapat mcningkatkan produktivitas untuk rnenghasilkan produk-produk yang efisien dan meningkatan kualitas dan promosi merek lokal.

This thesis is. aimed to analyze the Indonesian non oil and gas export performance to European Union and to analyze some factors which was considered on influencing the Indonesian non oil and gas export performance. e.g. GDP, real exchange rate and the comparative advantage.
The estimation model on this research was adopted from Yue dan Hua research in 2002 which was used the Revealed Comparative Advantage and others factors which was influenced the export of China e.g. real exchange rate, real GDP of producer, and real GDP of partner country.
The research was used data panel method with 7 (seven) years time series (2002-2006) and cross section unit from 7 (seven) European Union countries e.g. the Netherland, German, United Kingdom, Belgium, Italy, Spaln and France. In panel data analysis, the selection of the efficient estimation model was done through specification test F-test for knowing the individual effect, then Hausmann test for determining the Fixed Effect Model (FEM) or Random Effect Model (REM) and efficent. research fot analysing the factors which influenced the Indonesian non oil and gas export perfonnance to European Union was Fixed Effect Model.
The result of the estimation showed that the variable of real GDP of partner country (GDPP), the comparative advantage of manufacture commodity (RCA1) and the comparative advantage of mining commodity (RCA) indicated positive effect on the Indonesian non oil and gas export performance to European Union, while real exchange rate (RER) variable and the comparative advantage of agricultural commodity (RCAr) indicated negative effect on the Indonesian non oil and gas export performance to European Union. The research suggested to the Indonesian stakeholders Jn order to improve the productivity in producing the efficient products and improving the quality and local merk promotion.
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Jakarta: Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2008
T 27331
UI - Tesis Open  Universitas Indonesia Library
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Rimba Supriatna
"[ABSTRAK
Berdasarkan penelitian yang telah dilakukan, diperoleh hasil bahwa pelaksanaan
Hak Partisipasi/participating interest yang dilakukan oleh Daerah melalui BUMD
(Badan Usaha Milik Daerah) terdapat beberapa kelemahan yang akan
mempengaruhi posibilitas penerapan Golden Share. Beberapa kelemahan tersebut
antara lain tidak adanya pengaturan yang rigid dan jelas mengenai teknis
pelaksanaan Hak Partisipasi/participating interest, minimnya rasio kecukupan
modal pemerintah daerah dalam kewajiban penyertaan modal sebesar 10%,
rendahnya penguasaan teknologi dan kemampuan sumber daya manusia di sektor
pengusahaan hulu Migas. Posibilitas penerapan Golden Share dalam skema Hak
Partisipasi/participating interest sangat dipengaruhi oleh model pengaturan yang
diterbitkan oleh pihak otoritas dan pemenuhannya terhadap prinsip-prinsip nondiskriminasi,
non-diskresional dan proporsionalitas yang berkeadilan bagi seluruh
pihak terkait dalam industri Migas di negara yang bersangkutan. Golden Share
dalam praktiknya memungkinkan untuk diterapkan di Indonesia dengan tetap
memperhatikan aspek-aspek kelaziman bisnis agar dalam pelaksanaannya tidak
mendistrosi kebijakan operasional perusahaan.

ABSTRACT
Based on the research that has been done, the result that the implementation of the
Participation Rights/participating interests carried out by the Region through ROE
(Regional Enterprise/BUMD) there are some weaknesses that will affect the
possibility application of Golden Share. Some disadvantages include the absence
of rigid and clear arrangements/regulation regarding the technical implementation
of the Participation Rights/participating interests, minimum capital adequacy ratio
of local governments in liabilities equity participation of 10%, low mastery of
technology and human resource capacity in the upstream oil and gas exploitation
sector. Golden Share for the possibility of the application of the scheme
Participation Rights / participating interest is strongly influenced by the model
regulation issued by the authorities and fulfillment of the principles of nondiscrimination,
non-discretional and proportionality equitable for all parties
involved in the oil and gas industry in the country concerned. Golden Share in
practice allows to be applied in Indonesia with regard to aspects of normal
business practices so as to not distort the implementation of operational policy of
the company., Based on the research that has been done, the result that the implementation of the
Participation Rights/participating interests carried out by the Region through ROE
(Regional Enterprise/BUMD) there are some weaknesses that will affect the
possibility application of Golden Share. Some disadvantages include the absence
of rigid and clear arrangements/regulation regarding the technical implementation
of the Participation Rights/participating interests, minimum capital adequacy ratio
of local governments in liabilities equity participation of 10%, low mastery of
technology and human resource capacity in the upstream oil and gas exploitation
sector. Golden Share for the possibility of the application of the scheme
Participation Rights / participating interest is strongly influenced by the model
regulation issued by the authorities and fulfillment of the principles of nondiscrimination,
non-discretional and proportionality equitable for all parties
involved in the oil and gas industry in the country concerned. Golden Share in
practice allows to be applied in Indonesia with regard to aspects of normal
business practices so as to not distort the implementation of operational policy of
the company.]"
2015
T44419
UI - Tesis Membership  Universitas Indonesia Library
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Fatimah Zahrah
"Tesis desain ini mengajukan pendekatan desain berbasis portability dan untuk pengguna yang movement-challenged. Untuk mempelajari bagaimana fenomena shrinking space berdasarkan portability dan extensibility terjadi, dilakukan observasi mikro dari video yang menunjukkan manuver sehari-hari dari pengguna kursi roda. Gerakan kemudian di trace untuk memperlihatkan interaksi antara pengguna dan elemen spasial sekitar seperti pintu, tiang, furniture, dan lainnya. Peran yang ditemukan adalah elemen spasial sebagai elemen yang mendukung tubuh, seperti support gerakan horizontal dan vertikal, support kekuatan tubuh, dan memperlancar flow manuver. Sebagai elemen elemen spasial yang berbasis extensibility, muncul gagasan desain compact sebagai basis pendekatan perancangan arsitektur untuk pengguna yang movement-challenged untuk merespon fenomena shrinking space.

This design thesis proposes a design approach based onportability and extensibility for movement-challenged users. To explore how the shrinking space phenomena transpire due to lack of portability and extensibility, a micro observation of movement and interaction of the body with spatial elements based on video and direct experience is done. Movement is then traced to highlight interactions between the body and spatial elements. Spatial elements is found to have roles as extensibility tool or body support, such as horizontal and vertical movement support, body strength support, maneuvering support, etc. Thus, spatial element being an element of extensibility, suggest the notion of compact space as a design proposition for movement-challenged user and to respond to the shrinking space phenomena."
Depok: Fakultas Teknik Universitas Indonesia, 2023
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
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Armacost, David L.
New York: Marcel Dekker, 1981
512.2 ARM s
Buku Teks  Universitas Indonesia Library
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Brennan, Maynard
Lexington: D.C Heat And Company, 1978
R 808 BRE C
Buku Referensi  Universitas Indonesia Library
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Yudiansyah
"Pada penelitian ini dirancang mikrostrip bandpass filter (BPF) singleband dan dualband yang terdiri dari 3 buah singleband BPF (900 MHz, 1800 MHz dan 2400 MHz) dan 2 buah dualband BPF (900 MHz/1800 MHz dan 900 Hz/2400 MHz). Rancangan menggunakan kombinasi stub yang mampu menghasilkan nilai transmission zero (TZ). Dengan nilai TZ yang dihasilkan, maka filter ini memiliki kemampuan menggeser nilai frekuensi tengah & lebar pita yang dinginkan tanpa merubah skematik rangkaian yang baru. Perancangan menggunakan perangkat lunak Advanced Design System (ADS) dan dilakukan fabrikasi menggunakan material substrat Duroid dengan nilai permitivitas dielektrik 2.2, ketebalan substrat 1.575 mm, dan loss tangent 0.0009. Hasil simulasi singleband untuk masing-masing frekuensi 900 MHz, 1800 MHz dan 2400 MHz diperoleh kinerja S21 = 0.179 dB dan S11 = -34 dB, S21 = 0.25 dB dan S11 = -29.9 dB, dan S21 = 0.26 dB dan S11 = -26.3 dB. Dualband BPF pada frekuensi 900 MHz dan 1800 MHz masing – masing diperoleh nilai S21 = 0.4 dB, S11 = -33.3 dB dan S21 = 0.44 dB, S11 = -23 dB. Dan dualband BPF frekuensi 900 MHz dan 2400 MHz masing – masing diperoleh nilai S21 = 0.6 dB, dB S11 = -24dB dan S21 = 0.24 dB, S11 = -21.9 dB. Hasil simulasi maupun pengukuran menunjukkan bahwa BPF ini telah bekerja dengan sesuai yang diharapkan.

In this study, a microstrip bandpass filter (BPF) single-band and dual-band were designed consisting of 3 BPF single-band (900 MHz, 1800 MHz, and 2400 MHz) and 2 dual-band BPF (900 MHz / 1800 MHz and 900 Hz / 2400 MHz). The design uses a combination of stubs that are capable of producing transmission zero (TZ) values. With the TZ value generated, this filter has the ability to tune the value of center frequencies & the desired passband bandwidth without changing the schematic circuit. Design using Advanced Design System (ADS) software and fabrication using Duroid substrate material with 2.2 dielectric permittivity, 1,575 mm thickness, and 0,0009 loss tangent. Single-band results for 900 MHz, 1800 MHz and 2400 MHz frequencies obtained S21 = 0.179 dB and S11 = -34 dB, S21 = 0.25 dB and S11 = -29.9 dB, and S21 = 0.26 dB and S11 = -26.3 dB, respectively. Dual-band BPF at 900 MHz and 1800 MHz obtained S21 = 0.4 dB, S11 = -33.3 dB and S21 = 0.44 dB, S11 = -23 dBm, respectively. And dual-band BPF at 900 MHz and 2400 MHz obtained S21 = 0.6 dB, dB S11 = -24dB and S21 = 0.24 dB, S11 = -21.9 dB, respectively. Simulation and measurement results show that this BPF has worked as expected."
Depok: Fakultas Teknik Universitas Indonesia, 2019
T53141
UI - Tesis Membership  Universitas Indonesia Library
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