Characteristics of digital terrestrial broadcasting antennas. (2) unbalance fed modified batwing antenna

Ojiro, Y.; Kawakami, Haruo

doi:10.1109/aps.2000.875269

Cited by 6 publications

(6 citation statements)

References 1 publication

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“…For the HPBW in the xoz plane at the center frequency, this design shows the wider HPBW in the xoz plane than the others, which can cover a broader area. In terms of size, the prototype proposed in this paper is almost the same as that in [12] [14] [15], but its performance is much better than other literature. Although the antenna size in the reference [13] is small, its bandwidth and gain are far lower than other antennas.…”

Section: Implementation and Performancementioning

confidence: 99%

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A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

Fang

Jiang

2020

IEEE Access

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A full-band digital television (DTV) transmitting antenna array with dual-layer bowtie dipole unit is proposed in this paper. The dual-layer bowtie dipole is utilized as the antenna unit to broaden the frequency bandwidth, and its key parameters are discussed. Besides, a wideband impedance matching network with stepped complex impedance transformers is designed to achieve the full-band low voltage standing wave ratio (VSWR). For verification, a prototype is designed, fabricated, and measured. The experimental results agree well with the simulations. The measurement shows a relative bandwidth of 62.4% (455 MHz-868 MHz) under the criterion of VSWR < 1.15. Particularly, the VSWR is less than 1.13 within the range of 470 MHz-862 MHz, (i.e. the full band of the DTV transmitting system). And the proposed antenna maintains a stable gain larger than 11.6 dBi over the operating frequency band with the half-power beam width of 70° ± 3° in the horizontal plane, which meets the requirements of the full-band signal transmission in the DTV broadcasting system. INDEX TERMS Full-band antenna array, dual-layer bowtie dipole, DTV transmitting antenna, low VSWR.

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Section: Implementation and Performancementioning

confidence: 99%

“…Since simple feeding structures are employed, these wideband antennas with high gains are widely applied in the early DTV system. To obtain the VSWR less than 1.15, a balance to unbalance feeding structure [12] is utilized to achieve the relative bandwidth of 40%. In [13], a stacked E-shaped patch is designed to achieve a lower profile.…”

Section: Introductionmentioning

confidence: 99%

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

Fang

Jiang

2020

IEEE Access

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“…In , the authors proposed the four‐element modified batwing antennas with unbalanced feeding input without the balun and impedance matching circuit. Nonetheless, it is only suitable for TV broadcasting in Japan (470–770 MHz).…”

Section: Introductionmentioning

confidence: 99%

Broadband planar dipole array Antenna with double C-shaped slit elements for digital TV broadcasting transmission

Osklang

Phongcharoenpanich

2016

Int J RF and Microwave Comp Aid Eng

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This research has proposed a planar rectangular dipole antenna enclosed in double C-shaped parasitically slit elements (i.e., radiator element) on a double-cornered reflector for bandwidth enhancement. In the study, simulations were first carried out to determine the optimal parameters of the radiator element and then a radiator element prototype was fabricated and mounted onto a double-cornered aluminum reflector. The simulated and measured |S 11 |<-10 dB of the antenna element covered the frequency ranges of 451-901 MHz (66.6%) and 455-886 MHz (64.3%), respectively. The gain was enhanced by the subsequent deployment of multiple radiator elements to fabricate a four-element vertically array antenna on an elongated double-cornered reflector. The simulated and measured |S 11 |<210 dB of the array antenna, respectively, covered the 410-991 MHz (82.9%) and 415-886 MHz (72.4%) frequency ranges. The proposed array antenna radiates unidirectionally across the DTV frequency band with a measured front-to-back ratio and cross polarization >20 and <223 dB, respectively. The simulated and measured half-power beam widths in the E and H planes were respectively 568 6 138 and 208 6 68; and 578 6 138 and 218 6 68. In addition, the simulated and measured gains of the array antenna were 12.8-16.4 dBi and 11.3-15.8 dBi along the 470-862 MHz frequency range. This proposed array antenna is thus suitable for DTV broadcasting transmission. V C 2016 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:466-478, 2016.

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“…In this study, a thin brass bowtie structure using incision gaps technique is proposed for DTV base station. In [12][13][14][15][16][17][18][19], different types of broadcasting antennas for base station were developed and proposed. The antennas in [12][13][14] are a balance fed modified batwing radiator which could achieve the broadband characteristics appropriate for DTV applications.…”

Section: Introductionmentioning

confidence: 99%

“…In [15,16], the unbalance fed modified batwing antennas are proposed which do not use the balun and the impedance matching circuit. As a result, the broad range frequency coverage was obtained; however, these antennas are only suitable for the Japanese ultra-high frequency (UHF) band of 470-770 MHz.…”

Section: Introductionmentioning

confidence: 99%

Unidirectional bowtie array antenna with incision gap for digital video broadcasting‐T2 base station

Luadang

Phongcharoenpanich

2015

IET Microwaves, Antennas & Propagation

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This study presents a unidirectional bowtie array antenna with incision gap for a digital video broadcasting‐T2 base station application. The antenna element consists of a bowtie radiator with incision gap on top of a square reflector. The element achieves a bandwidth of 82.35% for |S11| of <−10 dB, covering a frequency range of 450–1080 MHz. The antenna array comprises of four identical antenna elements mounted vertically to form an antenna array. The simulated and measured results of the antenna array show a good impedance matching for |S11| of <−10 dB along a frequency range of 450–1014 MHz (77.05%). The measured gains are 13.4–16.1 dBi along an operating frequency of 470–862 MHz with the narrow half‐power beamwidth in the vertical plane of ∼15° ± 5° and the half‐power beamwidth in the horizontal plane of ∼60° ± 5° for a frequency range of 470–666 MHz and 90.5° for 862 MHz. The radiation pattern is degraded at the frequency higher than 950 MHz.

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Characteristics of digital terrestrial broadcasting antennas. (2) unbalance fed modified batwing antenna

Cited by 6 publications

References 1 publication

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

Broadband planar dipole array Antenna with double C-shaped slit elements for digital TV broadcasting transmission

Unidirectional bowtie array antenna with incision gap for digital video broadcasting‐T2 base station

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