A NOVEL MULTI-BAND CHIP ANTENNA DESIGN for 2.45 GHz and 5 GHz WLAN BANDS

Year 2017, , 155 - 159, 24.12.2017

Bahadir Yildirim

https://doi.org/10.22531/muglajsci.345093

Abstract

In this paper, a planar antenna operating at 2.45-GHz
WLAN band, and a chip antenna operating at 2.45/5-GHz WLAN bands are presented.
The chip antenna is evolved from the 2.45-GHz planar WLAN antenna. The chip
antenna is, in fact, a planar shorted and folded dipole sandwiched by two FR4
layers above the circuit board. Dielectric layers above and below the radiating
element form the chip-like package. The chip antenna has a small footprint of
18-mm by 17-mm. It has one RF signal lead and two RF ground leads for easy placement
and soldering on the circuit board. 3D electromagnetic simulations have been
used extensively for the design. The chip antenna exhibits good impedance and
gain behavior.

Keywords

Electromagnetic analysis, chip antenna, multiple band antenna, wireless LAN, FDTD

2.45 GHz VE 5 GHz WLAN BANTLARINDA ÇALIŞAN YENİ ÇOK-BANTLI BİR YONGA ANTEN TASARIMI

Abstract

Bu makalede, 2.45-GHz WLAN bandında çalışan
düzlem bir anten, ve 2.45/5-GHz WLAN bantlarında çalışan bir yonga anten
sunulmaktadır. Yonga anten, 2.45-GHz bandında çalışan düzlem WLAN antenden
evrimleşmiştir. Yonga anten, aslında, devre kartı üzerinde bulunan iki FR4
dielektrik tabaka arasına sıkıştırılmış, kısa devre edilmiş ve katlanmış bir
dipol antendir. Işıma yapan elemanın üzerinde ve altında bulunan dielektrik
tabakalar yongaya benzer bir paket oluştururlar. Yonga antenin ayak izi 18mm'ye
17mm'dir. Yonga antenin devre kartı üzerinde kolaylıkla yerleştirilebilmesi ve
lehimlenebilmesi için bir işaret ve iki de toprak ucu vardır. Tasarımda
3-boyutlu elektromanyetik simülasyonlar yoğun olarak kullanılmıştır. Yonga
anten iyi bir  empedans ve kazanç
davranışı sergiler.

Keywords

Elektomanyetik analiz, yonga anten, çok bantlı anten, telsiz LAN, FDTD

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