Small-Size Loop Antenna With a Parasitic Shorted Strip Monopole for Internal WWAN Notebook Computer Antenna

A Novel Quad-Band (Gsm850 to Ieee 802.11A) Pifa for Mobile Handset

“…Length of handset boxes model used in the simulation and measurement is as those used today [10][11][12][13][14][15][16][17][18][19][20][21][22].…”

“…In order to obtain a wide frequency band, the coupled-fed structure is usually applied [10][11][12]. However, the performance, especially in the high frequency band, is susceptible to the width of coupling gap.…”

Internal octa-band antenna for WWAN/LTE operation in a tablet computer

“…Some promising WWAN/LTE internal antennas for mobile devices have also been reported [2][3][4][5][6][7][8][9][10][11][12][13]. The operating bandwidth usually decreases as the size of antenna is reduced.…”

“…In this article, we present a novel internal uniplanar printed antenna capable of generating two operating bands to cover the desired 698-960 and 1710-2690 MHz bands. The required antenna size for the WWAN/LTE operation is smaller than those of the related internal WWAN/LTE antennas that have been reported [2][3][4][5][6][7][8][9][10][11][12][13]. The proposed antenna uses an inverted-U strip [11], [20] as the driven monopole.…”

“…The proposed antenna uses an inverted-U strip [11], [20] as the driven monopole. The parasitic shorted strip [7], [12][13], [20][21][22][23][24] is parasitically excited to generate a 0.25-wavelength resonant mode at about 750 MHz for LTE700 operation. The printed matching circuit is integrated with a shorted strip to contribute 0.25-wavelength resonant mode at about 940 MHz to cover the GSM850/900 operating bandwidth.…”