Antennas

• 1: Inverted-F PCB Antenna Pattern
• 1.1: Inverted-F PCB Antenna Data Sheet
• 2: Matchstick Antenna
• 2.1: Matchstick Antenna Data Sheet
• 2.2: Matchstick Antenna Data Sheet
• 3: Key-Shaped Antenna
• 3.1: Key-Shaped Antenna Data Sheet
• 4: Hook-Shaped Antenna
• 4.1: Hook-Shaped Antenna Data Sheet
• 5: Internal Embedded Planar Antenna
• 5.1: Internal Embedded Planar Antenna Data Sheet
• 6: Internal Embedded Planar Antenna
• 6.1: Internal Embedded Planar Antenna Data Sheet
• 7: Internal Embedded Planar Antenna
• 7.1: Internal Embedded Planar Antenna Data Sheet
• 8: Internal Embedded Planar Antenna
• 8.1: 筐体内組込み型平面アンテナ データシート
• 9: Indoor Foldable Antenna
• 9.1: Indoor Foldable Antenna Data Sheet
• 10: Waterproof Foldable Antenna (114)
• 10.1: Waterproof Foldable Antenna Data Sheet
• 10.2: Waterproof Foldable Antenna Data Sheet
• 11: Waterproof Foldable Antenna (123)
• 11.1: Waterproof Foldable Antenna Data Sheet
• 12: Dual-Polarized Patch Antenna
• 12.1: Dual-Polarized Patch Antenna Data Sheet
• 13: SMA Conversion Cable
• 13.1: SMA Conversion Cable Data Sheet
• 14: SMA Cable
• 14.1: SMA Cable Data Sheet
• 15: SMA Cable
• 15.1: SMA Cable Data Sheet

1 - Inverted-F PCB Antenna Pattern

1.1 - Inverted-F PCB Antenna Data Sheet

Product Overview

A PCB antenna dedicated to the TWELITE series, designed for small tags.

Features

• Composed of a copper foil pattern on a printed circuit board (FR-4), enabling a compact, thin, and cost-effective design (antenna characteristics improve with compact design).
• Dedicated antenna for the TWELITE series (TWE-L-WX / MW-R-WX / MW-G-WX) (cannot be connected to coaxial connector types).

Standard Installation Method

• To obtain similar radio wave characteristics (omnidirectional) in all directions, install vertically as shown in the figure. For details on omnidirectionality, refer to the section “Directivity”.

• When installed horizontally, omnidirectionality cannot be obtained.

Outline Drawing, Dimensions, and TWELITE Mounting Diagram

• Hatched area: copper foil formed on the printed circuit board.
• PCB substrate material: FR-4 (unchangeable)
• PCB substrate thickness: 0.5 [mm], 0.8 [mm], 1 [mm], 1.6 [mm] There are restrictions on the antenna pattern, PCB substrate thickness, and substrate material for radio certification. For details, refer to the section “About Radio Certification”.
• The antenna pattern is optimized for a PCB substrate thickness of 1 [mm], so characteristics slightly change if the substrate thickness differs. However, these changes are usually minimal. Characteristic patterns on a board based on an ideal GND size show changes of about 1–3 [dB].

Specifications

Note 1: This is the radio certification application value based on measurements in all directions and may differ from the maximum value in the directivity chart below.

Directivity

Directivity Measurement Method 1 (Standard Installation Method)

• Measure the vertical plane

• Vertical plane directivity

• Rotation direction of the measurement target and measurement angle

Directivity Measurement Method 2

• Measure the horizontal plane

• Horizontal plane directivity

• Rotation direction of the measurement target and measurement angle

Note: 0 [dB] on the directivity chart corresponds to the gain of a standard dipole antenna. Note: TWELITE was mounted on a printed circuit board measuring 32.75 [mm] × 26.00 [mm] with a substrate thickness of 1 [mm], and gain and directivity were measured.

About Radio Certification

There are restrictions on the antenna pattern, PCB substrate material, and substrate thickness for radio certification.

• In Japan, radio certification applications are made under the following conditions:

  1. Antenna pattern: design as shown in <Figure: Outline Drawing and Dimensions>
  2. PCB substrate material: FR-4
  3. PCB substrate thickness: 0.5 [mm], 0.8 [mm], 1.0 [mm], 1.6 [mm]
  4. Target modules: TWE-L-WX, MW-R-WX, MW-G-W

• Outside Japan (FCC, CE), radio certification applications are made under the following conditions:

  1. Antenna pattern: design as shown in <Figure: Outline Drawing and Dimensions>
  2. PCB substrate material: FR-4
  3. PCB substrate thickness: 1 [mm]
  4. Target module: TWE-L-WX

• For details, please refer to the URL below.

  https://twelite.gitbook.io/general/radio-cert/design-revf-ant

2 - Matchstick Antenna

2.1 - Matchstick Antenna Data Sheet

Product Overview

A matchstick antenna dedicated to the TWELITE series.

Main Features

1. Antenna dedicated to TWELITE Twilight and wire antenna types. (Cannot be connected to coaxial connector types.)
2. Can also be used bent. (When standing upright, it has characteristics closer to a dipole.)
3. Environmental consideration: RoHS compliant

Standard Installation Method

1. To obtain similar radiation characteristics (omnidirectional) in all directions, install the matchstick antenna vertically as shown in the figure.

   

2. When the matchstick antenna is installed horizontally, omnidirectionality cannot be obtained.

   

External Dimensions

1. Outline drawing and dimensions

   

2. MW-A-W0 Mounting diagram

   

Mounting Example

• The shape, design, and board thickness of the printed circuit board in <Figures 7~8> are examples and can be changed according to the application. To ensure antenna performance, wiring and electronic components (sensors, switches, etc.) are usually placed on the TWELITE mounting side, and the opposite side has a solid GND and battery holder.
• <Figures 7~8> are transparent views.

  

Specifications

Note 1: This is the radio certification application value based on measurements in all directions and may differ from the maximum value in the directivity chart below.

Directivity

1. Directivity Measurement Method 1 (Standard Installation Method)

Maximum: -0.8[dB] Minimum: -1.4[dB] Average: -1.2[dB]

2. Directivity Measurement Method 2

Maximum: -0.6[dB] Minimum: -17.4[dB] Average: -3.8[dB]

Note 3: 0[dB] in the directivity chart corresponds to the gain of a standard dipole antenna.

Note 4: TWELITE was mounted on the printed circuit board in <Figures 7~8> (solid GND size 30[mm]×30[mm]) to measure gain and directivity.

Remarks

1. Gain and directivity vary depending on the solid GND size of the printed circuit board on which TWELITE is mounted, external wiring, batteries, and placement of electronic components (sensors, switches).
2. If metal parts or wiring are placed around the MW-A-W0, antenna characteristics may be significantly affected. Examples with relatively small impact include resin, printed circuit boards without wiring (thickness: about 1~1.6[mm], material: FR-4, etc.), and resin screws.
3. When using inside a case, a case thickness of about 1.5~2[mm] and materials such as ABS resin or polycarbonate are recommended.
4. It is recommended that the solid GND size of the printed circuit board on which TWELITE is mounted be about 20[mm]×20[mm] to 40[mm]×40[mm].

2.2 - Matchstick Antenna Data Sheet

Product Overview

A matchstick antenna dedicated to the TWELITE series.

Main Features

1. Antenna dedicated to TWELITE Twilight and wire antenna types. (Cannot be connected to coaxial connector types.)
2. Can also be used bent. (When standing upright, it exhibits characteristics closer to a dipole.)
3. Environmental consideration: RoHS compliant.

Standard Installation Method

1. To obtain similar radiation characteristics (omnidirectional) in all directions, install the matchstick antenna vertically as shown in the figure.

   

2. When the matchstick antenna is installed horizontally, omnidirectionality cannot be obtained.

   

External Dimensions

1. Outline drawing and dimensions

   

2. MW-A-W0 mounting diagram

   

Mounting Example

• The shape, design, and board thickness of the printed circuit board in <Figures 7~8> are examples and can be changed according to the application. To ensure antenna performance, wiring and electronic components (sensors, switches, etc.) are usually placed on the TWELITE mounting side, and a solid GND and battery holder are placed on the opposite side.
• <Figures 7~8> are perspective views.

  

Specifications

Note 1: The value for radio certification application is based on measurements in all directions and may differ from the maximum value in the directivity chart below.

Directivity

1. Directivity Measurement Method 1 (Standard installation method)

Maximum: -0.8[dB]　Minimum: -1.4[dB]　Average: -1.2[dB]

2. Directivity Measurement Method 2

Maximum: -0.6[dB]　Minimum: -17.4[dB]　Average: -3.8[dB]

Note 3: 0[dB] on the directivity chart corresponds to the gain of a standard dipole antenna.

Note 4: TWELITE mounted on the printed circuit board in <Figures 7~8> (solid GND size 30[mm]×30[mm]) for gain and directivity measurement.

Remarks

1. Gain and directivity vary depending on the solid GND size of the printed circuit board on which TWELITE is mounted, external wiring, battery, and placement of electronic components (sensors, switches).
2. If metal parts or wiring are placed around the MW-A-W0, antenna characteristics may be significantly affected. Examples with relatively small influence include resin, printed circuit boards without wiring (thickness: about 1~1.6[mm], material: FR-4, etc.), and resin screws.
3. When used in a case, a case thickness of about 1.5~2[mm] and materials such as ABS resin or polycarbonate are recommended.
4. It is recommended that the solid GND size of the printed circuit board on which TWELITE is mounted be about 20[mm]×20[mm] to 40[mm]×40[mm].

3 - Key-Shaped Antenna

3.1 - Key-Shaped Antenna Data Sheet

4 - Hook-Shaped Antenna

4.1 - Hook-Shaped Antenna Data Sheet

5 - Internal Embedded Planar Antenna

5.1 - Internal Embedded Planar Antenna Data Sheet

6 - Internal Embedded Planar Antenna

6.1 - Internal Embedded Planar Antenna Data Sheet

7 - Internal Embedded Planar Antenna

7.1 - Internal Embedded Planar Antenna Data Sheet

Overview

TWELITE series coaxial connector dedicated, internal embedded antenna.

Features

• Unlike conventional antennas, which require vertical installation to handle vertical polarization, this product uses the Hentenna method and radiates vertical polarization waves from both sides when installed horizontally.
• This product comes with double-sided tape attached, allowing it to be affixed inside an ABS resin case. It is suitable for use like a remote control without protrusions, radiating radio waves towards the communication partner.

Standard Installation Method

• Install this product facing the communication partner horizontally.

Even when installed horizontally, if the edge side faces the target, communication may become unstable.

• When installed vertically, communication with the partner may become unstable.

Outline Drawing and Dimensions

Outline Drawing

Dimensions

Specifications

Note 1: The value is based on measurements in each direction for radio certification application and may differ from the maximum value in the directivity chart.

Directivity

• Directivity Measurement Method 1 (Standard Installation Method) ※ Logo side is at 180° direction

• Directivity Measurement Method 2 ※ Cable side is at 180° direction

• Directivity Measurement Method 3 ※ Logo side is at 180° direction

• Directivity Measurement Method 4 ※ Logo side is at 180° direction

Note 2: Half power beamwidth based on the peak value on the logo side half. The half power beamwidth on the opposite side half is almost the same.

Note 3: 0 [dB] on the directivity chart represents the gain of a standard dipole antenna.

Connection Method

Align the centers of the coaxial connectors of the TWELITE and this product parallel as shown below, then fit only the tip to position it.

If the coaxial connectors are misaligned during connection as shown below, it may cause damage to the coaxial connector.

Push the center of the coaxial connector gradually from directly above with your fingertip as shown below; connection is complete when you hear a “click” sound.

Remarks

• For connector removal, it is recommended to use the insertion/removal JIG (P/N:90224-001) made by Seiko Instruments Inc. ※ For the latest insertion/removal JIG, please contact Seiko Instruments Inc.

• Example of mounting inside an ABS resin case.

8 - Internal Embedded Planar Antenna

8.1 - 筐体内組込み型平面アンテナ データシート

9 - Indoor Foldable Antenna

9.1 - Indoor Foldable Antenna Data Sheet

10 - Waterproof Foldable Antenna (114)

10.1 - Waterproof Foldable Antenna Data Sheet

10.2 - Waterproof Foldable Antenna Data Sheet

11 - Waterproof Foldable Antenna (123)

11.1 - Waterproof Foldable Antenna Data Sheet

12 - Dual-Polarized Patch Antenna

12.1 - Dual-Polarized Patch Antenna Data Sheet

13 - SMA Conversion Cable

13.1 - SMA Conversion Cable Data Sheet

14 - SMA Cable

14.1 - SMA Cable Data Sheet

15 - SMA Cable

15.1 - SMA Cable Data Sheet