REALISASI BANDPASS FILTER SQUARE OPEN LOOP RESONATOR PADA APLIKASI UMTS

Bandpass filter adalah sebuah komponen pasif yang dipergunakan untuk meloloskan frekuensi antara f1 dan f2.Penggunaan bandpass filter pada komunikasi wireless sangat diperlukan baik di sisi pengirim dan penerima, karena bandpass filter dapat mencegah terjadinya interferensi antar frekuensi. Penelitian ini bertujuan untuk merancang filter pada perangkat UMTS yaitu dengan frekuensi 2,11 - 2,17 GHz. Adapun bentuk resonator yang dipergunakan adalah open loop resonator yang berbentuk persegi atau yang lebih dikenal dengan square open loop resonator. Filter yang dihasilkan memiliki 2 model. Pada bandpass filter model 1, memiliki nilai insertion loss tertinggi adalah 4,921 dB pada frekuensi 2,23 GHz, bergeser dari frekuensi bandpass yaitu 2,11 – 2,17 GHz. Pada frekuensi 2,11 GHz memiliki nilai insertion loss sebesar 10,34 dB sedangkan pada frekuensi 2,17 GHz sebesar 14,15 dB. Transmission zeros terjadi pada frekuensi 2,05 GHz dan 2,34 GHz. Sedangkan pada prototipe bandpass filter model 2, didapatkan nilai insertion loss tertinggi adalah 3,554 dB pada frekuensi 2,26 GHz, bergeser dari frekuensi bandpass yaitu 2,11 – 2,17 GHz.  Pada frekuensi 2,11 GHz memiliki nilai insertion loss sebesar 9,539 dB sedangkan pada frekuensi 2,17 GHz sebesar 7,167 dB. Transmission zeros terjadi pada frekuensi 1,99 GHz dan 2,41 GHz

ANALISIS NILAI MORAL DALAM NOVEL 5 CM KARYA DONNY DHIRGANTORO SEBAGAI ALTERNATIF BAHAN PEMBELAJARAN SASTRA DI SMA

Tujuan penelitian ini adalah mendiskripsikan (1) nilai moral yang terkandung dalam novel 5 cm karya Donny Dhirgntoro dan (2) moral tokoh yang terkadung dalam novel 5 cm karya Donny Dhirgantoro. Selain itu, juga memaparkan (3) bentuk penyampaian nilai moral dalam novel 5 cm karya Donny Dhirgantoro. Penelitian ini merupakan penelitian deskripstif kualitatif. Subjek penelitian ini adalah novel 5 cm karya Donny Dhirgantoro. Penelitian ini difokuskan pada permasalahan yang berkaitan dengan analisis nilai moral dengan kajian resepsi sastra. Data yang digunakan untuk menganalisis dengan teknik deskriptif kualitatif, yaitu suatu prosedur penelitian dengan hasil sajian data deskriptif berupa tuturan pengarang dalam novel 5 cm karya Donny Dhirgantoro. Cara pengumpulan data dilakukan dengan teknik baca catat. Validasi yang digunakan dalam penelitian ini adalah validasi intrarer, dan juga validasi intterater. Hasil penelitian menunjukkan sebagai (1) nilai moral yang terkandung dalam persahabatan atau pertemanan adalah interaksi sosial yang tidak bisa lepas dari manusia, sifat manusia yang masih membutuhkan orang lain, mendorong manusia untuk berteman atau bersahabat dengan orang lain, persahabatan menunjukkan kesetiaan dan kedekatan satu sama lainnya. (2) Wujud nilai moral dalam hubungan berbakti kepada orang tua, hubungan antara manusia yan mempunyai akal dan pikiran. Berbakti kepada orang tua dapat diwujudkan dalam berbagai macam bentuk, salah satunya adalah berbuat baik kepada orang tua. (3) Wujud nilai moral dalam bentuk persaudaraan merupakan ikatan yang sangat besar dalam suatu hubungan. Rasa persaudaraan yang terjalin menumbuhkan sikap kebersamaan satu sama lain

LAPORAN PRAKTIK PENGALAMAN LAPANGAN (PPL) UNY 2014 LOKASI SMK PI AMBARRUKMO 1 SLEMAN Jalan Cenderawasih no.125 Mancasan Lor, Condong Catur, Depok, Sleman

Salah satu sekolah yang menjadi tempat PPL UNY Yogyakarta adalah SMK PI Ambarrukmo 1 Sleman yang terletak di Jalan Cenderawasih no.125 Mancasan Lor. Secara garis besar SMK PI AMBARRUKMO 1 SLEMAN dapat diakses dengan mudah karena terletak di jalan raya utama. Sekolah ini merupakan sekolah menengaah kejuruan yang dikelola olah Yayasan Pengembang Ilmu. SMK PI AMBARRUKMO 1 SLEMAN memiliki 6 kelas yaitu X AP1, X AP2, XI AP1, XI AP2, XII AP1, dan XII AP2. Dari ke enam kelas tersebut, untuk kelas X dan XI mengacu pada Kurikulum 2013, sedangkan untuk kelas XII masih menggunakan KTSP

BANDWIDTH AND GAIN ENHANCEMENT OF MICROSTRIP ANTENNA USING DEFECTED GROUND STRUCTURE AND HORIZONTAL PATCH GAP

This research proposed microstrip antenna design using the Defected Ground Structure (DGS) and horizontal patch gap (HPG) for bandwidth and enhancement purposes. This design is to reduce the weakness of a microstrip antenna, which has small gain and narrow bandwidth. The design was simulated in CST Microwave Studio with a working frequency of 2.4 GHz. The design consists of three stages model, i.e., conventional design, DGS modification, and the combination DGS using a Horizontal Patch Gap (DGSHPG). The radius of the conventional circular patch is 16.7 mm. The substrate has 4.6 of dielectric constant, 1.6 of substrate height, and 0.025 of the loss tangent. The simulation results show that the DGS design produces more bandwidth and gain than a conventional design, where the bandwidth and gain improvement are 421.2 MHz and 1.73 dB, respectively. The DGS model is combined with a gap that separates the circular patch (DGSHPG) to achieve the optimum design. The results show the bandwidth and gain improvement of more than 50% and 18.1% compared to the DGS design, respectively. Other parameter performance also shows improvement, such as a reflection factor with -53.3 dB at the center frequency. The physical change also influences the patch’s radius, where it is reduced around 1.4 mm or 8.4% from the original design. Overall, the proposed design has succeeded in achieving bandwidth and gain enhancement and reducing the patch dimension

Design of 2x2 Wide Bandwidth MIMO Antenna For LTE And 5G Sub-6GHz

In this study, the design of a 2X2 MIMO microstrip antenna was proposed for LTE and 5G Sub-6GHz applications. The antenna is designed to have a wide bandwidth operating in the frequency range of 2300 MHz to 3600 MHz. The antenna material uses FR4 substrate which has a dielectric constant of 4.6 and a thickness of 1.6 mm. To achieve a wide bandwidth, the ground length is cut. Meanwhile, to achieve the resonant frequency using the square slot method on the radiator element. Antenna design begins with designing a single element shape, then designing a 2x2 MIMO antenna. The results of the MIMO2x2 antenna simulation show that the reflection coefficient and isolation coefficient of each antenna are below -10 dB. The results of the reflection coefficient of each antenna show that the bandwidth achieved is more than 2 GHz. At a frequency of 2300 MHz, the lowest gain is 2.98 dBi, while the highest gain is 3.10 dBi. The lowest and highest gains at a frequency of 3600 MHz are 3.83 dBi and 3.87 dBi. Overall, this antenna has achieved the desired goal, which is to have a wide bandwidth and be able to operate on LTE and 5G applications

Lowpass Filter with Hilbert Curve Ring and Sierpinski Carpet DGS

Good performance and compact size are the paramaters which are vital when desiging a filter. One of the creteria of good performance is selectivity. This research, conducted by Hilbert Curve Ring and Siepinski Carpet, is used as defected ground structure to overcome filter selectivity. By using three cascadeds Hilbert Curve Ring defected ground structure cells and three steps Sierpinski carpet, a lowpass filter is designed and fabricated. The measurement result for lowpass filterwith Hilbert Curve Ring defected ground structure has sharper selectivity with the cut off frequency at 2.173 GHz and the insertion loss value is 2.135 dB. While the measurement result for three steps Sierpinski carpet has the cut off frequency at 1.728 GHz and the insertion loss value is 0.682 dB

Substrate Integrated Waveguide Bandpass Filter with Complementary Split Ring Resonator at 2.45 GHz

Interferences between two applications should be avoided by using a filter. At present, the miniaturized filter is one of the requirement besides good quality and low insertion loss. The sixteenth-mode substrate integrated waveguide (SMSIW) is proposed by using a complementary split-ring resonator (CSRR) to fulfill miniaturized of filter. The filter design used two of sixteenth-mode SIW (SMSIW) that reduced 15/16 of the circular regular SIW. The frequency center filter design is at 2.5 GHz. The simulation result shows insertion loss value at 0.2 dB and return loss value at 29 dB, while for the measurement result gives insertion loss value at 0.7 dB and return loss value at more than 15 dB. It shows the measurement results give good value with the simulation results

Substrate integrated waveguide bandpass filter for short range device application using rectangular open loop resonator

The substrate integrated waveguide (SIW) structure is the candidate for many application in microwave, terahertz and millimeter wave application. It because of SIW structure can integrate with any component in one substrate than others structure. A kind components using SIW structure is a filter component, especialy bandpass filter. This research recommended SIW bandpass filter using rectangular open loop resonator for giving more selectivity of filter. It can be implemented for short range device (SRD) application in frequency region 2.4 - 2.483 GHz. Two types of SIW bandpass filter are proposed. First, SIW bandpass filter is proposed using six rectangular open loop resonators while the second SIW bandpass filter used eight rectangular open loop resonators. The simulation results for two kinds of the recommended rectangular open loop resonators have insertion loss (S21 parameter) below 2 dB and return loss (S11 parameter) more than 10 dB. Fabrication of the recommended two kind filters was validated by Vector Network Analyzer. The measurement results for six rectangular open loop resonators have 1.32 dB for S21 parameter at 2.29 GHz while the S11 parameter more than 18 dB at 2.26 GHz – 2.32 GHz. While the measurement results has good agreement for eight rectangular open loop resonators. Its have S21 below 2.2 dB at 2.41 – 2.47 GHz and S11 16.27 dB at 2.38 GHz and 11.5 dB at 2.47 GHz

Substrate Integrated Waveguide Bandpass Filter dengan Complementary Split Ring Resonator

Substrate integrated waveguide (SIW) is a technique to implement waveguide into microstrip material that can be applied to filter, antenna, mixer, coupler, and so on. Implementation of SIW to filter can overcome the problem of size reduction and high insertion loss commonly used in a conventional filter. While the complementary split ring resonator (CSRR) method overcomes the problem of size reduction and selectivity in conventional filters, thus combining the two can provide better filter performance. This research proposes both methods in realizing a bandpass filter by using a parameter study. Bandpass filter design works on a frequency of 3.4 – 4.6 GHz with an insertion loss value of 0.5 dB and a return loss value above 15 dB and has one transmission zeros at the frequency of 3.32 GHz. While the measurement results provide an insertion loss value below 3 dB and 6.5 dB return loss

Bandwidth Enhancement for Half Mode Substrate Integrated Waveguide Antenna using Defected Ground Structures

The SIW antenna suffers from the narrow bandwidth for a single cavity and single resonant. Defected ground structure (DGS) with a dual cavity was the solution to solve narrow bandwidth by resulting in hybrid resonance. The hybrid resonance with 14.83% impedance bandwidth is proposed in this antenna design. The first resonance resulted from the combination of the TE101 modes from inner and outer HMSIW cavities while the second resonance resulted from the combination of the strong TE101 and the weak TE102 mode from the inner HMSIW cavity and the addition of the weak TE101 from the outer HMSIW cavity. The measurement antenna design has a broadband antenna with a 14.31% (5.71 – 6.59 GHz) impedance bandwidth by using substrate Rogers RO 5880