DE8800025U1 - - Google Patents

Info

Publication number
DE8800025U1
DE8800025U1 DE8800025U DE8800025U DE8800025U1 DE 8800025 U1 DE8800025 U1 DE 8800025U1 DE 8800025 U DE8800025 U DE 8800025U DE 8800025 U DE8800025 U DE 8800025U DE 8800025 U1 DE8800025 U1 DE 8800025U1
Authority
DE
Germany
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.)
Expired
Application number
DE8800025U
Other languages
German (de)
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.)
OPPERMANN RICHARD 7762 LUDWIGSHAFEN DE
Original Assignee
OPPERMANN RICHARD 7762 LUDWIGSHAFEN DE
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 OPPERMANN RICHARD 7762 LUDWIGSHAFEN DE filed Critical OPPERMANN RICHARD 7762 LUDWIGSHAFEN DE
Priority to DE8800025U priority Critical patent/DE8800025U1/de
Publication of DE8800025U1 publication Critical patent/DE8800025U1/de
Priority to DE8814993U priority patent/DE8814993U1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/20—Continuous tuning of single resonant circuit by varying inductance only or capacitance only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/005—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with variable reactance for tuning the antenna
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
DE8800025U 1988-01-04 1988-01-04 Expired DE8800025U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8800025U DE8800025U1 (en) 1988-01-04 1988-01-04
DE8814993U DE8814993U1 (en) 1988-01-04 1988-12-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8800025U DE8800025U1 (en) 1988-01-04 1988-01-04

Publications (1)

Publication Number Publication Date
DE8800025U1 true DE8800025U1 (en) 1988-04-07

Family

ID=6819272

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8800025U Expired DE8800025U1 (en) 1988-01-04 1988-01-04

Country Status (1)

Country Link
DE (1) DE8800025U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334297A2 (en) * 1988-03-23 1989-09-27 Seiko Epson Corporation Wrist carried wireless instrument
US5225846A (en) * 1988-03-23 1993-07-06 Seiko Epson Corporation Wrist carried wireless instrument
US5530453A (en) * 1988-03-23 1996-06-25 Seiko Epson Corporation Wrist carried wireless instrument
EP1160915A3 (en) * 2000-05-30 2004-12-01 Mitsubishi Materials Corporation Antenna device of interrogator
WO2006002145A1 (en) * 2004-06-21 2006-01-05 Lutron Electronics Co., Inc. Compact radio frequency transmitting and receiving antenna and control device employing same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334297A2 (en) * 1988-03-23 1989-09-27 Seiko Epson Corporation Wrist carried wireless instrument
EP0334297A3 (en) * 1988-03-23 1990-09-12 Seiko Epson Corporation Wrist carried wireless instrument
US5225846A (en) * 1988-03-23 1993-07-06 Seiko Epson Corporation Wrist carried wireless instrument
US5530453A (en) * 1988-03-23 1996-06-25 Seiko Epson Corporation Wrist carried wireless instrument
EP1160915A3 (en) * 2000-05-30 2004-12-01 Mitsubishi Materials Corporation Antenna device of interrogator
US6963729B2 (en) 2000-05-30 2005-11-08 Mitsubishi Materials Corporation Antenna device of interrogator
WO2006002145A1 (en) * 2004-06-21 2006-01-05 Lutron Electronics Co., Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US7362285B2 (en) 2004-06-21 2008-04-22 Lutron Electronics Co., Ltd. Compact radio frequency transmitting and receiving antenna and control device employing same
US7408525B2 (en) 2004-06-21 2008-08-05 Lutron Electronics, Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US7548216B2 (en) 2004-06-21 2009-06-16 Lutron Electronics Co., Inc. Compact radio frequency transmitting and receiving antenna and control device employing same
US7573436B2 (en) 2004-06-21 2009-08-11 Lutron Electronics Co., Inc. Compact radio frequency transmitting and receiving antenna and control device employing same

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