Printed antennas

Part 1 book "Low visibility antennas for communication systems" includes content: Electromagnetic theory and transmission lines, basic antenna theory, low visibility printed antennas, antenna array.

123p dianmotminh03 17-06-2024 0 0   Download

Part 2 book "Low visibility antennas for communication systems" includes content: Applications of low visibility printed antennas, wearable antennas for communication and medical applications, wearable tunable printed antennas for medical applications, new wideband wearable meta material antennas for communication applications, fractal printed antennas, microwave and MM wave technologies, radio frequency measurements.

168p dianmotminh03 17-06-2024 0 0   Download

This paper introduces a novel high gain and wideband antenna array at 5 GHz for outdoor applications. The proposed array consists of a 2×9 elements planar array and a reflector. This antenna has a gain peak of 15.7 dBi and a bandwidth of 2 GHz from 4.0 GHz to 6.0 GHz.

6p videadpool 05-05-2023 7 3   Download

In this paper, we present a low-cost compact Radio Frequency Identification (RFID) tag antenna for the toll collection system in the ultra-high frequency (UHF) bands. The antenna is a printed dipole antenna, which is built on the top-side of a low-cost FR-4 substrate (εr = 4.4 and a thickness of 0.8 mm).

4p vispyker 16-11-2022 11 2   Download

This paper proposes a new design of a low sidelobe level (SLL) and high gain linear printed Vivaldi antenna array. The array composes of two parts, which are a linear Vivaldi antenna array and a back reflector. The array consists of 10 single Vivaldi antennas and a new series-fed network, those are based on Rogers RO4003C substrate (ε = 3.55) with the dimension of 450 × 140 × 1.524 mm3 .

8p trinhthamhodang9 10-12-2020 8 1   Download

The following will be discussed in this chapter: Parabolic reflective antenna, antenna gain, signal loss in satellite communication, noise types, refraction, fading, diffraction and scattering, fast and slow fading, flat and selective fading, diversity techniques.

91p nanhankhuoctai8 23-06-2020 10 2   Download

In this paper, a novel antenna array at 5GHz is presented with a low sidelobe level and wide impedance bandwidth for indoor positioning applications . The antenna array has the size of 450 ×57×0.8 mm3 with the high gain of 14.5dBi and the low SLL of -18 dB at 5GHz. The sesier feed using Unequal Split T-Junction is proposed with the Chebyshev-amplitude distribution to improve SLL. Besides the 1800 phase and amplitude distribution, by deploying driven elements above each single antenna element, the radiation pattern and the gain of the antenna aray are significantly improved.

11p 12120609 01-06-2020 18 1   Download

The Topic of microstrip antennas is an old subject that started over 40 years ago. Microstrip antennas are low profile and easily fabricated. This subject has passed through several stages that make it survive tell now and still in continues progress. The main stage is the development of low loss low cost dielectric materials that make it possible to design an effi‐ cient low profile microstrip patches. The stage of developing analysis methods and models that helped in the design of radiating...

0p lyly_5 22-03-2013 42 3   Download

Nature abhors a vacuum. Me, too, I guess I tried to fill it in my usual ways. Drank too much beer, cooked elaborate Mexican dinners, walked aimlessly in the dripping woods under slate-gray Oregon skies. And of course, I watched television: old movies seen in worn prints, music videos with strutting rock stars, baseball games inching to conclusion across bright-green fields Ghost images, ghost voices pulled by my dish antenna from the satellite-thick sky. The void remained: I had a talent growing slack from disuse; I had an empty space in my bed.

21p hotmoingay8 26-01-2013 49 1   Download

Truyền thông không dây đã phát triển rất nhanh trong những năm gần đây, theo đó các thiết bị di động đang trở nên càng ngày càng nhỏ hơn. Để thỏa mãn nhu cầu thu nhỏ các thiết bị di động, anten gắn trên các thiết bị đầu cuối cũng phải được thu nhỏ kích thước. Các anten phẳng, như anten vi dải (microstrip antenna) và anten mạch in (printed antenna), có các ưu điểm hấp dẫn như kích thước nhỏ và dễ gắn lên các thiết bị đầu cuối, ... chúng sẽ là lựa chọn thỏa mãn yêu cầu...

19p vanthanh87hy 14-01-2013 294 68   Download

This paper concentrates on studying, designing and manufacturing a dual – band and high – bandwidth antenna applied for advance mobile handsets. This antenna can work in GSM/UMTS bands by generating two resonant modes of 900 MHz and 1900 MHz frequencies. Antenna is printed on FR4 substrate with size of 58 mm x 80 mm, thickness of 1.6 mm and relative permittivity of 4.4. The propose antenna is experimentally studied. Keywords: Antenna, dual-band, monopole, microstrip antenna.

5p tuanlocmuido 13-12-2012 41 3   Download