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

Evaluasi dan Perancangan Ulang Instalasi Listrik Gedung Manajemen dan Ruang Kelas Di SMAN 6 Garut

Kebutuhan energi listrik SMA Negeri 6 Garut semakin bertambah seiring berjalannya waktu dalam upaya mendukung kegiatan operasional dan akademik. Untuk menciptakan keamanan dan kenyamanan pengguna, instalasi listrik yang terpasang harus memenuhi syarat – syarat umum instalasi listrik yaitu keamanan, keandalan, dan ekonomis. Setelah penulis melakukan observasi, terdapat beberapa ruangan dan grup panel yang instalasi listriknya tidak sesuai dengan standar PUIL 2011 dan SNI. Selain itu juga pihak sekolah tidak memiliki dokumentasi gambar instalasi listrik yang mana ketika terjadi gangguan pada instalasi listrik menjadi sulit pada saat dilaksanakannya proses pemeriksaan, perawatan maupun perbaikan pada instalasi listrik. Oleh karena itu, salah satu bentuk kontribusi yang bisa dilakukan adalah melakukan evaluasi dan merancang ulang instalasi listrik, khususnya pada sistem penerangan dan daya yang sesuai dengan standar. Hasil dari penelitian ini yaitu menghasilkan sebuah rancangan instalasi penerangan, instalasi daya dan dokumen gambar rancangan instalasi listrik beserta Bill of Quantity yang bisa menjadi rekomendasi instalasi listrik baru yang telah disesuaikan dengan perhitungan dan standar yang berlak

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

The effect of male CEO masculinity face on earnings management: Evidence from Indonesia

This study aims to prove the consistency of Agency Theory, Behavioral Consistency Theory and Upper Echelon Theory as a solution to explain the influence of male CEO masculinity on earnings management. This study uses a quantitative approach with a population and research sample using companies on the Indonesia Stock Exchange in 2016–2021. The study collected images of faces identified as male CEOs from data from the Indonesia Stock Exchange website and company websites and using Google searches. The data analysis method in this study uses Ordinary Least Square Regression, Fixed Effects, Random Effects, Robust by using Stata Software which is one of the regression solving procedures that has a high level of flexibility in research that connects theories, concepts and data that can be carried out on research variable. These findings explain that the higher the mas-culinity of the male CEO’s face has an impact on increasing earnings management, and vice versa, the lower the masculinity of the male CEO’s face has an impact on the decrease in earnings management. The empirical findings have implications for management as a policy maker regarding the face of male masculinity which has an impact on earnings management policies, so that these empirical findings can be used by corporate and government management. The empirical findings provide evidence in the field of behavioral accounting by looking at the face of male masculinity as determinant of company earnings management.Subjects: Advanced Mathematics; Statistics & Probability; Statistics for Social Sciences; Sociology; Sociology & Social Policy; Gender& Development; Economics; Finance; Business, Management andAccounting; Industry & Industrial Studies Keywords: CEO male masculinity; earnings management; Stata Nur Fadjrih Asyik1*, Muchlis2, Triyonowati1, Rusdiyanto3, Ignatia Martha Hendrati4, 5 and Suyanto

The role of leverage as mediator the effect of male CEO masculinity face on research & development

This study aims to prove the support of Agency Theory and Behavioral Consistency Theory as a solution to explain the role of leverage in mediating the influence of male CEO masculinity on research and development. This study uses a quantitative approach with a population and research sample using companies on the Indonesia Stock Exchange in 2017–2021. This study collects facial images identified as male CEOs from data on the Indonesia Stock Exchange website and company websites and utilizes Google search. The data analysis method in this study uses Structural Equation Modeling which connects theories, concepts and data that can be applied to research variables. The findings explain that decreasing and increasing leverage has an impact on increasing and decreasing the masculi-nity value of male CEOs as well as increasing and decreasing the value of research and development. The implications of the results of this research can assist the Indonesian Institute of Accountants in developing Financial Accounting Standards No. 19 in Indonesia. The theoretical implications of the results of this study can be explained through Agency Theory, Behavioral Consistency Theory and Upper Echelon Theory. The policy implications of the results of this study can provide empirical evidence that the higher the face value of masculinity for male CEOs has an impact on increasing leverage and research and development costs, conversely the lower face value of masculinity for male CEOs has an impact on increasing the value of leverage as well as research and development, and leverage mediates the effect of face male CEO masculinity on research and development costs.Subjects: Psychological Science; Developmental Psychology; Economics; Finance; Business, Management and Accounting Keywords: CEO Male; Masculinity; Leverage; R&D; Stata; SEM o1*, 1, 1, Nur Fadjrih Asyik2, Rusdiyanto Rusdiyanto3, 4 and Gazali Gazali

Pendampingan Masyarakat Desa dalam Membangun Kesadaran Mendaftarkan Tanah Hak Milik (Penyuluhan Hukum di Desa Buntulia Utara Kec. Buntulia Kab. Pohuwato)

The problem of land ownership in Buntulia Village is influenced by the lack of knowledge and awareness of the community about land ownership rights because of the total population of 549 families, 463 people have not registered their own land. This of course raises a fairly basic problem by the village government to be resolved. Therefore, in this downstreaming, the service team provides understanding and legal knowledge to the community about the importance of registering property rights and providing assistance to the community together with the Land Agency through the Border Marks Post Community Movement (GEMA PATAS) in order to increase community participation in installing boundary markings, making it easier for BPN officers to take measurements, as well as being able to accelerate the government program on Complete Systematic Land Registration. Thus the community could see the importance of legalizing property rights to the land in order  to avoid disputes and thereby give legal certainty to the parties

Perancangan Antena Diplexing Menggunakan Metode Half Mode SIW dengan Metode Cavity Back Slot Sebagai Matching Impedansi

Penggunaan teknologi dinas tetap (fixed-services) bertujuan untuk memenuhi kebutuhan masyarakat akan teknologi telekomunikasi nirkabel. Pada perkembangannya muncul tantangan untuk meningkatkan performa dan efisiensi perangkat teknologi seperti penggunaan lebih dari satu frekuensi dalam satu device. Penelitian ini mendukung tantangan tersebut dengan membuat antena yang dapat bekerja untuk dua resonansi frekuensi (diplexing). Metode yang digunakan untuk mendesain antena diplexing tersebut yaitu Half Mode Substrate Integrated Waveguide (HMSIW) Cavity Backed Slot Antenna (CBSA). Metode CBSA mempunyai kemampuan untuk mencapai matching impedansi dengan mengatur inset-feed dan rectangular slot. Hasil simulasi menunjukan antena dapat bekerja pada frekuensi tengah (fC) 4,5 dan 5,8 GHz.  Nilai S11 dan S22 simulasi masing-masing memperoleh -30 dB dan -16,86 dB, serta nilai S12 dan S21 masing-masing -27 dB dan -26 dB. Sedangkan hasil pengukuran menunjukan antena bekerja pada frekuensi tengah (fC) 4,25 dan 5,67 GHz, dengan nilai S11 dan S22 masing-masing -33,10 dB dan -23,27 dB, serta nilai S12 dan S21 masing-masing -30 dB dan -29,6 dB. Hasil simulasi telah sesuai dengan spesifikasi yang diinginkan. Perbedaan dengan hasil pengukuran dapat disebabkan karena faktor pabrikasi, penyolderan dan proses etching

The role of political connection to moderate board size, woman on boards on financial distress

AbstractThis study aims to obtain empirical evidence of the effect of Board Size, Woman on Boards on Financial Distress, as well as the Role of Political Connections in Moderating Board Size, Woman on Boards on Financial Distress. This study seeks to identify the effect of Board Size, Woman on Boards on Financial Distress, and the Role of Political Connections in Moderating Board Size, Woman on Boards towards Financial Distress. This study uses a quantitative approach with a population and research sample using companies listed on the Indonesia Stock Exchange in 2016–2021. This study collects Board Size, Woman on Boards on Financial Distress from data on the Indonesia Stock Exchange website and companies from 2016–2021 and utilizes Google search. The data analysis method in this study uses the Regression Ordinary Least Square analysis method, Fixed Effects, Random Effects, Robust with Stata Software. Stata software is one of the Regression completion procedures that has a high degree of flexibility in research that links theory and data that can be carried out on variables in research. The first finding explains that board size does not have a negative effect on financial distress. The second finding explains that female commissioners have a positive and significant influence on financial distress. The third finding explains that the woman director has a positive and significant influence on financial distress. The fourth finding explains that the role of political connections strengthens and has a significant effect on board size on financial distress. The fifth finding explains that the role of political connections weakens and significantly influences the woman commissioner on financial distress. The sixth finding explains that the role of political connections weakens the influence of woman directors on financial distress. The practical implications of the results of this study can help company management and government in policy makers regarding the influence of board size, woman commissioners, woman directors on financial distress, and evaluate the role of political connections in moderating the effect of board size, woman commissioners, woman directors on financial distress. Theoretical implications of the results of this study can explain agency theory. As far as the results of the researchers’ observations so far have not found research on the topic and to evaluate the role of political connections in moderating the effect of board size, female commissioners, female directors on financial distres