EP3273540A1 - Antenne - Google Patents

Antenne Download PDF

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Publication number
EP3273540A1
EP3273540A1 EP17151525.7A EP17151525A EP3273540A1 EP 3273540 A1 EP3273540 A1 EP 3273540A1 EP 17151525 A EP17151525 A EP 17151525A EP 3273540 A1 EP3273540 A1 EP 3273540A1
Authority
EP
European Patent Office
Prior art keywords
antenna
section
main radiation
radiation body
impedance matching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17151525.7A
Other languages
English (en)
French (fr)
Inventor
Chih-Yung Huang
Kuo-Chang Lo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcadyan Technology Corp
Original Assignee
Arcadyan Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcadyan Technology Corp filed Critical Arcadyan Technology Corp
Publication of EP3273540A1 publication Critical patent/EP3273540A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to an antenna, in particular to an inverse-F antenna.
  • planar inverse-F antenna is of small size and can achieve high performance, so is very suitable for various hand-held electronic devices and wireless transmission devices; for the reason, planar inverse-F antenna is the most popular antenna for now.
  • planar inverse-F antenna still has a lot of shortcomings to be overcome.
  • connection area between some conventional planar inverse-F antennas and the circuit board is insufficient, so the antennas tend to overturn, which increases the failure rate of the antennas.
  • planar inverse-F antennas need to use transmission line to feed in signals instead of microstrip line, which occupies more space, so the cost of these antennas will increase.
  • the antenna may include a main radiation body, a signal feed-in end, a connection section, a ground section and an impedance matching adjustment section.
  • the main radiation body may include a base side, a lateral side, a first inclined side and a second inclined side; the included angle between the first inclined side and the lateral side may be obtuse; the included angle between the first inclined side and the second inclined side may be obtuse; the included angle between the second inclined side and the base side may be acute.
  • the signal feed-in end may be coupled to the main radiation body.
  • the connection section may be coupled to the main radiation body.
  • the ground section may be coupled to the connection section.
  • the impedance matching adjustment section may be coupled to the ground section.
  • the main radiation body may be an asymmetric sector in shape.
  • the length of the main radiation body may be related to the operating frequency of the antenna.
  • the included angle between the signal feed-in end and the connection section may be a right angle.
  • the include angle between the lateral side and the base side may be a right angle.
  • the size of the impedance matching adjustment section may be related to an impedance matching of the antenna.
  • the impedance matching adjustment section may be rectangular.
  • one end of the ground section may be coupled to the main radiation body, and the other end of the ground section may be coupled to the connection section.
  • the signal feed-in end, the main radiation body, the connection section, the ground section and the impedance matching adjustment section may be on the same plane.
  • a recess may be formed between the main radiation body, the connection section, the ground section and the impedance matching adjustment section.
  • the width of the main radiation body may be related to a bandwidth of the antenna.
  • the base side may be parallel to a horizontal plane.
  • the recess may overlap the ground section and the connection section in the vertical direction.
  • the size of the recess may be related to the impedance matching of the antenna.
  • the base side may overlap the bottom of the connection section in the horizontal direction.
  • the recess may extend toward the horizontal direction and contact the signal feed-in end in the vertical direction.
  • the antenna 1 may include a main radiation body 11, a signal feed-in end 12, a connection section 13, a ground section 14 and an impedance matching adjustment section 15.
  • the main radiation body 11 may include a base side 111, a lateral side 112, a first inclined side 113 and a second inclined side 114.
  • the included angle between the first inclined side 113 and the lateral side 112 may be an obtuse angle; the included angle between the first inclined side 113 and the second inclined side 114 may be an obtuse angle; the included angle between the second inclined side 114 and the base side 111 may be an acute angle.
  • the included angle between the lateral side 112 and the base side 111 may be a right angle, and the base side111 may be parallel to the horizontal plane.
  • the length of the main radiation body 11 may be related to the operating frequency of the antenna 1, and the width of the main radiation body 11 may be related to the bandwidth of the antenna 1, so the operating frequency and the bandwidth of the antenna 1 may be adjusted by modifying the length and the width of the main radiation body 11.
  • the signal feed-in end 12 may be coupled to the main radiation body 11; in the embodiment, the included angel of the signal feed-in end 12 and the connection section 14 may be a right angle.
  • ground section 13 may be coupled to the main radiation body 11, and the other end of the ground section 13 may be coupled to the connection section 13; in the embodiment, the base side 111 may overlap the bottom of the connection section 13 in the vertical direction.
  • the impedance matching adjustment section 15 may be coupled to the ground section 14, and the size of the impedance matching adjustment section 15 may be related to the impedance matching of the antenna 1; in the embodiment, the impedance matching adjustment section 15 may be rectangular in shape.
  • the ground section 14 may be coupled to the ground section 13, and the ground section 14 may include a bent portion (not shown in FIG. 1 ), so the antenna 1 can be stably fixed on the circuit board; in this way, the antenna 1 does not tend to overturn, which can significantly reduce the failure rate of the antenna 1.
  • the above structure of the embodiment can allow the main radiation body 11, the signal feed-in end 12, the connection section 13, the ground section 14 and the impedance matching adjustment section 15 to be on the same plane, so the structure of the antenna can be significantly simplified; therefore, the antenna 1 does not tend to be deformed.
  • a recess 16 may be formed between the main radiation body 11, the connection section 13, the ground section 14 and the impedance matching adjustment section 15; the special recess 16 structure may be related to the impedance matching of the antenna 1, so the impedance matching of the antenna 1 can be adjusted by modifying the size of the recess 16.
  • the recess 16 may overlap the ground section 14 and the connection section 13 in the vertical direction, and may contact the signal feed-in end 12 in the vertical direction.
  • the antenna 1 has a special structure design, so all parts of the antennas can be located on the same plane, which can significantly simplify the structure of the antenna 1, and effectively reduce the failure rate of the antenna 1.
  • the height of the antenna 1 can be reduced, so the application range of the antenna 1 may be more comprehensive.
  • the main radiation body 11 of the antenna 1 has a special geometric shape, so the operating frequency and the bandwidth of the antenna 1 are very easily to be adjusted; furthermore, the antenna 1 can further have an independent impedance matching adjustment section 15 and a special recess 16 structure, so the antenna 1 can be very easily to be optimized; therefore, the antenna 1 is very flexible in use.
  • the embodiment just illustrates a preferred structure of the antenna instead of limiting the scope of the present invention; the structure of the antenna can be modified according to actual requirements.
  • the embodiment illustrates that the antenna 1 is applied to a wireless transmission device whose operating frequency is 5150MHz ⁇ 5850MHz.
  • the structure of the antenna 1 is specially designed, so very suitable to be applied to various hand-held electronic devices (such as smart phone and notebook computer, etc.) or wireless transmission devices (such as access point, etc.), and can achieve excellent performance.
  • FIG. 2 shows the return loss diagram of a wireless transmission device having the antenna 1 and its operating frequency is 5150MHz ⁇ 5850MHz;
  • FIG. 3 shows the antenna efficiency diagram of the wireless transmission device. According to FIG. 2 and FIG. 3 , the antenna 1 can achieve great performance in both return loss and antenna efficiency.
  • the antenna 1 may include a main radiation body 11, a signal feed-in end 12, a connection section 13, a ground section 14 and an impedance matching adjustment section 15.
  • the recess 16 of the antenna 1 in the embodiment may overlap the ground section 14 and the connection section 13 in the vertical direction, but fail to contact the signal feed-in end 12 in the vertical direction; in this way, the impedance matching of the antenna 1 can be adjusted without increasing the height of the antenna 1.
  • the embodiment just illustrates a preferred structure of the antenna instead of limiting the scope of the present invention; the structure of the antenna can be modified according to actual requirements.
  • the antenna 1 may include a main radiation body 11, a signal feed-in end 12, a connection section 13, a ground section 14 and an impedance matching adjustment section 15.
  • the impedance matching adjustment section 15 of the antenna 1 in the embodiment may extend toward the horizontal direction, so the impedance matching of the antenna 1 can be adjusted without increasing the height of the antenna 1.
  • the embodiment just illustrates a preferred structure of the antenna instead of limiting the scope of the present invention; the structure of the antenna can be modified according to actual requirements.
  • the main radiation body, the signal feed-in end, the connection section, the ground section and the impedance matching adjustment section of the antenna may be on the same plane, so the structure of the antenna is very simple; thus, the antenna does not tend to be deformed, which can further reduce the failure rate of the antenna.
  • some conventional planar inverse-F antennas are compact, but the height of these antennas is still too high; therefore, these antennas occupy a lot of space, which limits the application range of these antennas.
  • the antenna is properly designed, so the height of the antenna can be reduced; therefore, the antenna does not occupy a lot of space, so the application range of the antenna can be more comprehensive.
  • signals can be fed in the antenna by microstrip line rather than transmission line, which does not occupy a lot of space, so the cost of the antenna can decrease.
  • the main radiation body may be an asymmetric sector in shape, so the operating frequency and the bandwidth of the antenna are easily to be adjusted; further, the antenna has an independent impedance matching adjustment section and a special recess structure for adjusting the impedance matching of the antenna; therefore, the antenna is easily to be optimized, so is very flexible in use. Accordingly, the present invention definitely has an inventive step.
  • the ground section 14 of the antenna 1 may further include a bent portion 14, which allows the antenna to be stably fixed on the circuit board P, so the antenna 1 does not tend to overturn, which can significantly reduce the failure rate of the antenna 1.
  • the ground section of the antenna may include a bent portion, which allows the antenna can be stably fixed on the circuit board, so the antenna does not tend to overturn, which significantly reduce the failure rate of the antenna.
  • the ground section of the antenna may include a bent portion, which allows the antenna can be stably fixed on the circuit board, so the antenna does not tend to overturn, which significantly reduce the failure rate of the antenna.
  • the main radiation body, the signal feed-in end, the connection section, the ground section and the impedance matching adjustment section of the antenna may be on the same plane, so the structure of the antenna is very simple; thus, the antenna does not tend to be deformed, which can further reduce the failure rate of the antenna.
  • the antenna is properly designed, so the height of the antenna can be reduced; therefore, the antenna does not occupy a lot of space, so the application range of the antenna can be more comprehensive.
  • signals can be fed in the antenna by microstrip line rather than transmission line, which does not occupy a lot of space, so the cost of the antenna can decrease.
  • the main radiation body may be an asymmetric sector in shape, so the operating frequency and the bandwidth of the antenna are easily to be adjusted; further, the antenna has an independent impedance matching adjustment section and a special recess structure for adjusting the impedance matching of the antenna; therefore, the antenna is easily to be optimized, so is very flexible in use.

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  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
EP17151525.7A 2016-07-22 2017-01-13 Antenne Withdrawn EP3273540A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW105123301A TWI625893B (zh) 2016-07-22 2016-07-22 天線

Publications (1)

Publication Number Publication Date
EP3273540A1 true EP3273540A1 (de) 2018-01-24

Family

ID=57796280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17151525.7A Withdrawn EP3273540A1 (de) 2016-07-22 2017-01-13 Antenne

Country Status (3)

Country Link
EP (1) EP3273540A1 (de)
CN (1) CN107645039A (de)
TW (1) TWI625893B (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147921A1 (de) * 2001-09-28 2003-04-17 Siemens Ag Planare Inverted-F-Antenne
US20050200556A1 (en) * 2004-03-09 2005-09-15 Hsien-Chu Lin Dual-band antenna with an impedance transformer
US20060001573A1 (en) * 2002-08-28 2006-01-05 Kim Byung C Radiation device for planar inverted f antenna
US7466276B1 (en) * 2007-06-18 2008-12-16 Alpha Networks Inc. Broadband inverted-F antenna
EP2063487A1 (de) * 2007-11-16 2009-05-27 Arcadyan Technology Corp. Dualbandantenne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6343208B1 (en) * 1998-12-16 2002-01-29 Telefonaktiebolaget Lm Ericsson (Publ) Printed multi-band patch antenna
EP1618627A1 (de) * 2003-04-28 2006-01-25 Huber + Suhner Ag Breitbandige antennenanordnung
US6943733B2 (en) * 2003-10-31 2005-09-13 Sony Ericsson Mobile Communications, Ab Multi-band planar inverted-F antennas including floating parasitic elements and wireless terminals incorporating the same
TWI240450B (en) * 2003-10-31 2005-09-21 Wistron Neweb Corp Antenna set
TWI548145B (zh) * 2013-01-07 2016-09-01 智易科技股份有限公司 全向式天線

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147921A1 (de) * 2001-09-28 2003-04-17 Siemens Ag Planare Inverted-F-Antenne
US20060001573A1 (en) * 2002-08-28 2006-01-05 Kim Byung C Radiation device for planar inverted f antenna
US20050200556A1 (en) * 2004-03-09 2005-09-15 Hsien-Chu Lin Dual-band antenna with an impedance transformer
US7466276B1 (en) * 2007-06-18 2008-12-16 Alpha Networks Inc. Broadband inverted-F antenna
EP2063487A1 (de) * 2007-11-16 2009-05-27 Arcadyan Technology Corp. Dualbandantenne

Also Published As

Publication number Publication date
TW201804665A (zh) 2018-02-01
CN107645039A (zh) 2018-01-30
TWI625893B (zh) 2018-06-01

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