Ultra Wideband (UWB) technology is an unmodulated wireless digital communication system that uses an extremely short duration pulse to transmit information bit. Because of this pulse, the UWB system needs a very wide bandwidth. Federal Communication Commission (FCC) has regulated the 3.1 – 10.6 GHz frequency spectrum for UWB. Since FCC released this frequency, many research in telecommunication have been done on UWB systems. One of them is a development of an Antenna that is suitable for UWB devices. UWB antenna characteristics require FCC band, omnidirectional radiation pattern, and compact size. In order to meet these needs, an antenna with a simple structure in the form of a monopole patch antenna with a similar patch size and ground width has been designed. The antenna is built on an FR4 – epoxy substrate material, with 4.4 dielectric constant and 1.6 mm thickness. The antenna feeding structure consists of two 100 Ω and 50 Ω lines with a wideband impedance matching scheme using tapered side and tapered transformers. The antenna design and optimization processes are conducted using electromagnetic simulation software, and measurements are carried out in an anechoic chamber. Simulation and measurement results show good agreement, and the antenna can work at frequencies 3.5 - 11.3 GHz with a gain of 1.5 – 3.25 dBi and stable omnidirectional radiation patterns. The antenna has dimensions of 27 × 8 × 1.6 mm, which are smaller than the antenna reported in the last research and suitable to be applied on various UWB devices.

A small size patch antenna for replacing TP-LINK WA 701 ND access point (AP) internal antena for 2.4 GHz is proposed. Measurements are carried out on AP external antenna to get the basic parameter of the antenna i.e. return loss, bandwidth, radiation pattern, and polarization. The patch antenna is designed by using IE3D simulator on FR4 material with the thickness of 1.6 mm and the dielectric constant of 4.4. The 42×28×1.6 mm overall size of the designed antenna is printed on FR 4 substrate, measured and compared to external AP antenna. The measurement result shows good agreement between simulation and designed antenna. The printed antenna covers 2.4 GHz, the gain of 2.5 dBi, and has linier polarization. This antenna is much smaller than 190×15×15 mm conventional TP-LINK WA 701 ND AP antennas and allows it to be hidden and integrated on the AP printed circuit board. The comparation of the designed antenna and external AP antenna is also conducted by evaluating both antenna performance on TP-LINK WA 701 ND AP by accessing it on a laptop on different access distance.

3ABSTRAK Mahasiswa seringkali mendapatkan tugas-tugas yang harus dicetak seperti makalah, laporan, skripsi, dan sebagainya sehingga kegiatan cetak dokumen menjadi sangat sering dilakukan. Kegiatan cetak dokumen di luar terasa sangat mengganggu produktivitas para mahasiswa karena dengan begitu mereka harus berjalan menuju tempat print, mengantre, dan sibuk mencari tempat print yang buka. Cuaca yang sering tidak mendukung serta harga cetak yang tidak sesuai juga menjadi salah satu faktor kurangnya kepuasan pelanggan atas solusi mencetak di luar. Dalam penelitian ini penulis mencoba untuk menyelesaikan persoalan di atas dengan membuat sebuah sistem e-business web-to-print dimana pelanggan hanya tinggal upload lalu pilih lokasi dimana ia akan mengambil hasil cetak dokumennya dan jika dokumen selesai pelanggan akan mendapatkan pemberitahuan dan ia dapat mengambil dokumennya. Penelitian dilakukan dari tahapan analisis kebutuhan, perancangan, implementasi, sampai pengujian.

Perkembangan teknologi dari tahun ke tahun berkembang dengan pesat disegala aspek kehidupan. Salah satu aspek tersebut yaitu Kesehatan. Dengan teknologi saat ini kita dapat mengetahui penyakit cacar air yang kita derita atau orang lain tanpa perlu konsultasi ke dokter dengan aplikasi sistem pakar. Karena masih banyak orang yang belum mengetahui gejala-gejala cacar air.Sehingga dengan dibuatnya sistem pakar ini orang awam dapat mampu mendeteksi adanya penyakit pada dirinya atau orang lain berdasarkan gejala-gejala yang dirasakan dengan menjawab pertanyaan seperti halnya berkonsultasi ke dokter.Sistem pakar ini menggunakan metode bayes . Dengan metode bayes dapat menunjukan besarnya nilai hasil kepercayaan terhadap hasil diagnosa.

Information systems are currently increasing very rapidly, but it is unfortunate if the utilization is not yet optimal. Reviewing the data from literature studies and observations that have been made, many people need sewing services. The drastic increase in demand makes competition in the convection industry. Most of the work systems in the convection industry are done manually and are not economical. Product development also lacks creativity. Therefore, this researcher will use IT as marketing and design work, this can make processing time shorter and more optimal. Thus, customers will be facilitated in ordering ready-made clothes or clothes that match the customer's wishes by using a web application that only sends data on the size of the clothes or clothing model that the customer wants. This web-based application system can make it easier for customers to transact with the owner and transactions do not have to meet face to face. In addition, clothing sales and large-scale orders can be neatly organized and financial reports can be well structured and organized clearly. The results of this research will be in the form of research reports and web-based online sewing service information systems using the waterfall method.