Study of Monopole Radiators for Planar Circuit Integration

Abstract

Communication terminals for WLAN and similar systems require omni-directional antennas which can be used as a single radiator or in array and MIMO arrangements. The paper proposes to use low-profile top-loaded monopole and toploaded folded monopole radiators and the integration into planar circuits where the radiators are directly fed (without a launcher) by microstrip line. The design and performance of both types is investigated in a simulation study and by experiment. High relative bandwidth of 25% is achieved for the folded monopole type with a height over ground as low as 0.09 free space wavelength.

Millimeter Wave Antenna Design for 5G Applications

“…However, although there are several advantages with the UWB standard, and in particular with UWB antennas such as wide bandwidth, low power consumption, and high data-rate wireless connectivity among devices within a personal operating space, the above mentioned antennas operating in such systems are limited to a carrier frequency ranging between 700MHz and 2600 MHz as in [1][2][3][4][5][6][7][8][9][10][11][12], and from 3GHz to 10GHz as in [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Still the antennas on offer are not flexible enough to provide tunning/coverage for frequencies outside this range.…”