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All Journal Jurnal Bisnis Mahasiswa International Journal of Wireless And Multimedia Communications
Anjali, Putri
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Social Sciences Other

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Fabrication and Implementation of a Microstrip Antenna for Digital Television Reception at UHF Frequencies Anjali, Putri; Yustini, Yustini; Adila Asril, Aprinal; Maritsyah Putra, Danda
International Journal of Wireless And Multimedia Communications Vol. 2 No. 1 (2025): International Journal of Wireless And Multimedia Communications
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jowim.v2i1.78

Abstract

Television broadcasting has evolved from analog to digital technology, utilizing digital modulation and compression to efficiently transmit video, audio, and data signals. Antennas play a crucial role in this technology, with microstrip antennas being particularly notable for their compact size, ease of fabrication, and suitability for integration with other telecommunications equipment. The fabricated antenna measures 200 x 235 mm. By optimizing the Destructure Patch Element and Defected Ground Structure techniques, along with the addition of an Inset Feed, a wider bandwidth can be achieved, allowing for the reception of more digital television channels. At its working frequency, the fabricated antenna achieved a return loss of -36.8 dB, a bandwidth of 218.46 MHz, and a frequency range of 481.83 MHz to 700.29 MHz. The measured Voltage Standing Wave Ratio (VSWR) was 1.02, with a gain of 2.11 dBi at 538 MHz, 2.12 dBi at 546 MHz, 2.27 dBi at 626 MHz, and 2.3 dBi at 642 MHz. The radiation pattern was omnidirectional. Using a Vector Network Analyzer, the fabricated antenna was measured to have a return loss of -18.37 dB and a VSWR of 1.27. Additionally, digital TV broadcast testing was conducted, successfully receiving a strong and clear signal.
Pengaruh Harga, Suasana Toko, Servicescape dan Variasi Produk terhadap Keputusan Pembelian pada Toko Alda Grosir Rantauprapat Anjali, Putri; Nasution, Ade Parlaungan; Siregar, Muhammad Raja
Jurnal Bisnis Mahasiswa Vol 5 No 3 (2025): Jurnal Bisnis Mahasiswa
Publisher : PT Aksara Indo Rajawali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60036/jbm.649

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui bagaimana pilihan konsumen di Toko Alda Grosir Rantauprapat dipengaruhi oleh harga, suasana toko, servicescape, dan variasi produk. Populasi penelitian ini adalah pelanggan Toko Alda Grosir Rantauprapat. Karena populasi dalam penelitian ini tidak diketahui, maka penulis menggunakan rumus untuk mengambil sampel penelitian (Hair et al., 2019). Oleh karena itu, 120 responden merupakan ukuran sampel yang akan diteliti. Penelitian ini menggunakan Structural Equation Model (SEM), yang berbasis pada Statistical Product and Service Solutions (SPSS) dan Partial Least Square (PLS). Hasil penelitian menunjukkan bahwa di Toko Alda Grosir Rantauprapat, harga secara signifikan dan positif memengaruhi keputusan pembelian konsumen. Keputusan pembelian di Toko Alda Grosir Rantauprapat dipengaruhi secara positif dan signifikan oleh suasana toko. Keputusan pembelian di Toko Alda Grosir Rantauprapat dipengaruhi secara signifikan dan positif oleh Servicescape. Keputusan pembelian di Toko Alda Grosir Rantauprapat dipengaruhi secara positif dan signifikan oleh variasi produk.
Co-Authors Ade Parlaungan Nasution, Ade Parlaungan Aprinal Adila Asril Maritsyah Putra, Danda Muhammad Raja Siregar Yustini