TAILIEUCHUNG - A Novel wideband VHF antenna for impulse GPR applications

In this article, propose a novel wideband VHF antenna to improve the deep penetration for the impulse GPR system. Unlike the above bow ties antenna, the antenna is based on Lemniscate curve to achieve a good radiation. | SCIENCE & TECHNOLOGY DEVELOPMENT, Vol 17, 2014 A Novel wideband VHF antenna for impulse GPR applications • Dong Tan Phuoc • Bui Huu Phu DCSELAB, University of Technology,VNU-HCM Pham Minh Quang • Post and Telecommunications Institute of Technology (Manuscript Received on December 11th, 2013; Manuscript Revised September 05th, 2014) ABSTRACT: A novel wideband VHF antenna for the impulse ground penetrating radar (GPR) system at 200 MHz central frequency is presented in this article. The antenna improves the impulse GPR system for increasing ability penetration. By using the Lemniscate curve, this novel structure of the proposed antenna achieve better radiation than other bow-tie antennas. In addition, this article also proposes the UWB balanced-to-balanced (balun) transformation line is designed to feed the antenna. The balun is an important element for improving the bandwidth of the antenna. The fabrication of the antenna is only simple but also low cost with FR4 substrate and copper patch. The proposed antenna is designed and fabricated with the successful results. Keywords: Impulse ground penetrating radar (GPR) system, Lemniscate curve, balanced-tounbalanced (balun), bow-tie antenna, Novel wideband VHF antenna. 1. INTRODUCTION Ground penetrating radar (GPR) is sometimes Quantitative interpretation through modeling can called or information as depth, orientation, size and shape of subsurface radar. GPR uses electromagnetic wave buried objects, density and water content of soils, propagation and scattering to image, locate and and much more. Important component in any GPR quantitatively identify contrasts in electrical and system are the transmitter and receiver antennas magnetic [2]. Antennas radiate electromagnetic energy in georadar, ground properties in probing radar, the ground. [1]. Detectability derive from ground penetrating radar data such the microwave band (UHF/VHF frequencies) of a subsurface feature depends .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.