Ditutup

Retrodirective tags in C-Band

The goal of the project is to obtain the design of a working retrodirective tag in C-Band responding the following requirements:

• Retrodirectivity in azimuth plane;

• 90° polarization change between RX and TX;

• Antenna Gain Ga ≥20dB in frequency band 5,725GHz – 5,875GHz;

• Azimuthal 3dB Beamwidth = 12°;

• Elevation cosecant shaped Radiation pattern (between 17,1° and 75,4°);

• Tag ID: signal coding by OOK (0 / 1) or polar ASK (-1 / +1) with discrete tunable modulation frequency;

• Manual discrete tuning of the modulating frequency from 1MHz to 3MHz, with 100kHz step;

• Battery supplied with an autonomy of 12 months (optional: external source and/or solar cell);

• Always powered-on;

• Dimensions: no more than 235mm x 190mm;

• Plastic enclosure with fixing brackets;

• Price per unit (for a 1.000 pieces supply) ≤ 50€.

The requirement on price per unit must be granted with exhaustive documentation.

For further information on the project see the atached file.

20 Apr 2012: Attached a second revision of the detailed documentation and a zip-file containing gerber files of the reference design.

Kemahiran: Elektronik, Kejuruteraan, Susun Atur PCB, Kejuruteraan Telekomunikasi, Tanpa Wayar

Lihat lebih lanjut: retrodirective tag, price engineering, goal engineering, engineering price, elevation engineering, x-plane, solar project, RX, polar, plane, engineering c++, enclosure, discrete , coding in c++, band, azimuth, Autonomy, wireless signal, design plastic enclosure, elevation band, brackets, Requirement engineering, file design project documentation, design price tag, plastic engineering design

Tentang Majikan:
( 0 ulasan ) Perugia, Italy

ID Projek: #1527436

4 pekerja bebas membida secara purata €763 untuk pekerjaan ini

reallifetech

See details in MB.

€600 EUR dalam 14 hari
(17 Ulasan)
4.5
engrdilaawaiz

plz see pvt msg

€1700 EUR dalam 60 hari
(3 Ulasan)
4.2
sanjoy681

try to best

€250 EUR dalam 20 hari
(0 Ulasan)
0.0
sampathkbc

Dear Sir I am new freelancer but i have vast experience in this field. now i am working head of Electronic of Department of meteorology. i can do this job very well please detail me Sampath

€500 EUR dalam 15 hari
(0 Ulasan)
0.0