Electronic device and antenna module

Abstract

The present invention discloses an electronic device and an antenna module. The electronic device includes a device body, a processing unit, and an antenna module. The processing unit is disposed in the device body. The antenna module is disposed in the device body and includes an insulating frame and an antenna structure. The insulating frame has a first surface and a second surface, and the first surface corresponds to the second surface. The antenna structure includes a feeding portion, a first radiation portion, and a first extending portion. The feeding portion includes a first feeding end, a second feeding end, and a conductive via hole. The first feeding end is disposed on the first surface, the second feeding end is disposed on the second surface and is coupled to the processing unit, and the conductive via hole connects the first feeding end and the second feeding end. The first radiation portion is disposed on the first surface and is connected to the first feeding end. The first extending portion is disposed on the second surface and is connected to the first radiation portion. A first slot is formed between the first extending portion and the second feeding end.

Description

Technical Field

[0001] The present invention relates to an electronic device and its electrical module, and particularly to an electronic device and its antenna module. Background Art

[0002] In order to adapt to current wireless transmissions of multiple frequency bands, the antenna of a consumer electronic product needs to cover a wide frequency bandwidth. For this purpose, a design method of an antenna is to synthesize the designs of two antennas, one for low frequency and the other for medium and high frequencies, and a tuning circuit is added to the low-frequency antenna to switch different matching circuits to achieve the characteristic of covering multiple frequency bands at low frequencies. This design method must be switched by connecting to a switching circuit through a connection point of a grounding path, which not only has a relatively complex design but also cannot reduce the antenna cost. Summary of the Invention

[0003] The present invention provides an electronic device, and its antenna module can cover the required frequency bandwidth range through a simple antenna structure in a limited configuration space.

[0004] The present invention provides an antenna module, which can cover the required frequency bandwidth range through a simple antenna structure in a limited configuration space.

[0005] The electronic device of the present invention includes a device body, a processing unit, and an antenna module. The processing unit is disposed within the device body. The antenna module is disposed within the device body and includes an insulating frame and an antenna structure. The insulating frame has a first surface and a second surface, and the first surface corresponds to the second surface. The antenna structure includes a feeding portion, a first radiation portion, and a first extension portion. The feeding portion includes a first feeding end, a conductive through hole, and a second feeding end. The first feeding end is disposed on the first surface, the second feeding end is disposed on the second surface and is coupled to the processing unit, the conductive through hole penetrates the insulating frame and connects the first feeding end and the second feeding end, the first radiation portion is at least partially disposed on the first surface and is connected to the first feeding end, the first extension portion is disposed on the second surface and is connected to the first radiation portion, and a first slot is formed between the first extension portion and the second feeding end.

[0006] The antenna module of the present invention includes an insulating frame and an antenna structure. The insulating frame has a first surface and a second surface. The antenna structure includes a feeding portion, a first radiation portion, and a first extension portion. The feeding portion includes a first feeding end, a conductive through hole, and a second feeding end. The first feeding end is disposed on the first surface, the second feeding end is disposed on the second surface and is coupled to the processing unit, the conductive through hole penetrates the insulating frame and connects the first feeding end and the second feeding end, the first radiation portion is at least partially disposed on the first surface and is connected to the first feeding end, the first extension portion is disposed on the second surface and is connected to the first radiation portion, and a first slot is formed between the first extension portion and the second feeding end.

[0007] In an embodiment of the present invention, a first opening is formed between the above-mentioned first extension portion and the first radiation portion. The insulating frame has a first assembling portion and is assembled to the device body through the first assembling portion, and the first assembling portion is located within the first opening.

[0008] In an embodiment of the present invention, the above-mentioned insulating frame has a third surface, and the third surface is connected between the first surface and the second surface. The first radiation portion extends from the first surface through the third surface to the second surface to connect to the first extension portion.

[0009] In an embodiment of the present invention, the above-mentioned antenna structure includes a second radiation portion and a second extension portion. The second radiation portion is at least partially disposed on the third surface and is connected to the first radiation portion, and the second extension portion is disposed on the second surface and is connected to the second radiation portion.

[0010] In an embodiment of the present invention, a second opening is formed between the above-mentioned second extension portion and the second radiation portion. The insulating frame has a second assembling portion and is assembled to the device body through the second assembling portion, and the second assembling portion is located within the second opening.

[0011] In an embodiment of the present invention, the above-mentioned antenna structure includes a third radiation portion and a grounding portion. The third radiation portion is disposed on the first surface and is connected to the first feeding end and the first radiation portion, and the grounding portion is disposed on the first surface and is connected to the first feeding end. A second slot is formed between the third radiation portion and the grounding portion.

[0012] In an embodiment of the present invention, the above-mentioned antenna structure includes a grounding portion. The grounding portion is disposed on the first surface and is connected to the first feeding end. The grounding portion includes two relatively bent sections, and a third slot is formed between the two sections.

[0013] In an embodiment of the present invention, the above-mentioned antenna structure includes a grounding portion. The grounding portion is disposed on the first surface. One section of the grounding portion is connected to the first feeding end, and a fourth slot is formed between the other section of the grounding portion and the first feeding end.

[0014] In an embodiment of the present invention, the other section of the above-mentioned grounding portion has at least one protruding portion, and the at least one protruding portion extends from the other section toward the first feeding end.

[0015] In an embodiment of the present invention, the above-mentioned electronic device includes a shielding structure and at least one electronic component. At least one electronic component is disposed within the device body, and the shielding structure is disposed within the device body to block between the antenna module and the at least one electronic component.

[0016] In an embodiment of the present invention, the above-mentioned antenna structure includes a grounding portion. The grounding portion is connected to the first feeding end and is coupled to the shielding structure to be grounded to a ground plane of the electronic device through the shielding structure.

[0017] Based on the above, in the antenna module of the present invention, the antenna structure is disposed on a three-dimensional insulating frame, the feeding portion extends from the first surface of the insulating frame to the opposite second surface, and the first extending portion extends from the first radiating portion and is located on the second surface and forms a first slot between the second feeding end on the second surface. By changing the width of this first slot, the impedance matching of the antenna structure in a specific frequency band can be adjusted to cover the required frequency bandwidth range through a simple antenna structure in a limited configuration space.

[0018] To make the above features and advantages of the present invention more obvious and understandable, specific embodiments are hereinafter given and described in detail in conjunction with the accompanying drawings. Description of the Drawings

[0019] Figure 1 is a schematic diagram of an electronic device according to an embodiment of the present invention.

[0020] Figure 2 is Figure 1 a partial cross-sectional schematic diagram of the electronic device.

[0021] Figure 3 is Figure 2 a partial perspective view of the antenna module.

[0022] Figure 4 is Figure 3 a perspective view of the antenna module from another perspective.

[0023] Figures 5A to 5D are respectively Figure 3 front views of the antenna structure from different perspectives.

[0024] Figure 6A and Figure 6B respectively show the voltage standing wave ratio (VSWR) of the antenna module of this embodiment in different frequency bands.

[0025] Figure 7A and Figure 7B respectively show the antenna efficiency of the antenna module of this embodiment in different frequency bands. Detailed Description of the Embodiment

[0026] Figure 1 is a schematic diagram of an electronic device according to an embodiment of the present invention. Please refer to Figure 1, the electronic device 100 of this embodiment is a tablet computer and includes a device body 110, a processing unit 120, and an antenna module 130. The processing unit 120 and the antenna module 130 are disposed within the device body 110. The antenna module 130 is coupled to the processing unit 120, and the processing unit 120 is configured to process the wireless signals received and transmitted by the antenna module 130. In other embodiments, the electronic device 100 may be other types of electronic products, such as a notebook computer, and the present invention is not limited thereto.

[0027] Figure 2 is Figure 1 Partial cross-sectional schematic view of the electronic device. Figure 3 is Figure 2 Partial perspective view of the antenna module. Please refer to Figure 2 and Figure 3 , in this embodiment, the antenna module 130 includes an insulating frame 132 and an antenna structure 134. The material of the insulating frame 132 is, for example, plastic, which has a corresponding first surface 132a and a second surface 132b and has a corresponding third surface 132c and a fourth surface 132d. The third surface 132c is connected between the first surface 132a and the second surface 132b, and the fourth surface 132d is connected between the first surface 132a and the second surface 132b. The material of the antenna structure 134 is metal and is, for example, configured along the first surface 132a, the second surface 132b, the third surface 132c, and the fourth surface 132d by a Laser Direct Structuring (LDS) process.

[0028] Figure 4 is Figure 3 Perspective view of the antenna module from another perspective. Figures 5A to 5D are respectively Figure 3 Front views of the antenna structure from different perspectives. Please refer to Figures 3 to 5D , specifically, the antenna structure 134 includes a feeding portion 134a, a first radiation portion 134b, and a first extension portion 134c. The feeding portion 134a includes a first feeding end 134a1, a conductive through hole 134a2, and a second feeding end 134a3. The first feeding end 134a1 is disposed on the first surface 132a of the insulating frame 132, and the second feeding end 134a3 is disposed on the second surface 132b of the insulating frame 132 and is coupled to the processing unit 120 (shown in Figure 2 ) through a signal line CL (shown in Figure 1), the conductive vias 132a2 penetrate through the insulating frame 132 and are connected to the first feeding end 134a1 and the second feeding end 134a3. The first radiation part 134b is disposed on the first surface 132a of the insulating frame 132 and is connected to the first feeding end 134a1, and the first radiation part 134b extends from the first surface 132a through the third surface 132c to the second surface 132b. The first extension part 134c is disposed on the second surface 132b of the insulating frame 132 and is connected to the first radiation part 134b.

[0029] As described above, the antenna structure 134 is disposed on the three-dimensional insulating frame 132. The feeding part 134a extends from the first surface 132a of the insulating frame 132 to the opposite second surface 132b, and the first extension part 134c extends from the first radiation part 134b and is located on the second surface 132b. Thus, a first slot C1 (marked in Figure 5D ) can be formed between the first extension part 134c and the second feeding end 134a3, and the corresponding impedance matching bandwidth can be adjusted by changing the width of the first slot C1.

[0030] The antenna structure 134 of this embodiment further includes a second radiation part 134d and a second extension part 134e. The second radiation part 134d is disposed on the third surface 132c of the insulating frame 132 and is connected to the first radiation part 134b. The second extension part 134e is disposed on the second surface 132b of the insulating frame 132 and is connected to the second radiation part 134d. Continuing from the above, the antenna structure 134 resonates a low frequency band (for example, 800 MHz) and a corresponding second harmonic frequency band (for example, 1700 MHz) through its first radiation part 134b, first extension part 134c, second radiation part 134d, and second extension part 134e. By changing the width W1 of the first slot C1 (marked in Figure 5D ), the impedance matching of the antenna structure 134 in the low frequency band can be adjusted to cover the required low frequency bandwidth range. And, by changing the extension length of the second radiation part 134d, the resonance frequency point of the low frequency band can be adjusted.

[0031] Furthermore, the antenna structure 134 of this embodiment further includes a third radiation part 134f and a grounding part 134g. The third radiation part 134f is disposed on the first surface 132a of the insulating frame 132 and is connected to the first feeding end 134a1 and the first radiation part 134b. The grounding part 134g is disposed on the first surface 132a of the insulating frame 132 and is connected to the first feeding end 134a1, and a second slot C2 (marked in Figure 5B ) is formed between the third radiation part 134f and the grounding part 134g. By changing the width W2 of the second slot C2 (marked in Figure 5B) It is also possible to adjust the impedance matching of the antenna structure 134 in the low-frequency band so that it covers the required low-frequency bandwidth range.

[0032] In addition, the antenna structure 134 resonates a first high-frequency band (e.g., 1600 MHz) and a corresponding second harmonic frequency band (e.g., 3500 MHz) through its first radiation portion 134b and first extension portion 134c, and resonates a second high-frequency band (e.g., 2000 MHz) and a corresponding second harmonic frequency band (e.g., 3700 MHz) through its third radiation portion 134f. Continuing from the above, the grounding portion 134g of this embodiment includes a plurality of sections 134g1, 134g2, 134g3. Section 134g1 is connected to the first feeding end 134a1, section 134g2 is connected to section 134g1 and is bent relative to section 134g1, and section 134g3 is connected to section 134g2. A third slot C3 (marked in Figure 5B ) is formed between sections 134g1 and 134g2, and a fourth slot C4 (marked in Figure 5B ) is formed between section 134g3 and the first feeding end 134a1. By changing the width W3 of the third slot C3 (marked in Figure 5B ) and / or the width W4 of the fourth slot C4 (marked in Figure 5B ), the impedance matching of the antenna structure 134 in the first and second high-frequency bands can be adjusted so that it covers the required high-frequency bandwidth range. Moreover, by changing the extension length of the first radiation portion 134b, the impedance matching bandwidth and resonance frequency point of the first high-frequency band can be adjusted, and by changing the extension length of the third radiation portion 134f, the impedance matching bandwidth and resonance frequency point of the second high-frequency band can be adjusted.

[0033] Furthermore, the section 134g3 of the grounding portion 134g of this embodiment has two protruding portions P1, P2, and the protruding portions P1, P2 extend from section 134g towards the first feeding end 134a1. The antenna structure 134 resonates a third high-frequency band (e.g., 5000 MHz) through the open circuit formed by the protruding portion P1 and the first feeding end 134a1. By changing the width W5 of the feeding portion 134a (marked in Figure 5B ) and the length L1 of the protruding portion P1, the distances d1, d2 between the protruding portion P1 and the first feeding end 134a1 can be changed, so as to adjust the impedance matching bandwidth and resonance frequency point of the third high-frequency band. In addition, by changing the length L2 of the protruding portion P2, the impedance matching bandwidth and resonance frequency point of the corresponding high-frequency band (e.g., 3800 MHz) can be adjusted.

[0034] Since the antenna module 130 of this embodiment can cover multiple frequency bands of low frequency and high frequency as described above, it can be applied to antenna signal processing units of various specifications. Thus, as long as different antenna signal processing units are replaced, the signal transceiver frequency band can be upgraded or changed without re-designing and replacing the antenna module 130, thereby saving the device cost.

[0035] Please refer to Figure 4 and Figure 5D , the insulating frame 132 of this embodiment has a first assembly portion 1321 and a second assembly portion 1322, and is assembled to the device main body 110 (shown in Figure 1 and Figure 2 ) through the first assembly portion 1321 and the second assembly portion 1322. Correspondingly, in the antenna structure 134 of this embodiment, the first extension portion 134c has a smaller width W6 (marked in Figure 5D , for example, 1 mm), and a first opening OP1 is formed between the first extension portion 134c and the first radiation portion 134b. Similarly, the second extension portion 134e has a smaller width W7 (marked in Figure 5D , for example, 1 mm), and a second opening OP2 is formed between the second extension portion 134e and the second radiation portion 134d. The first assembly portion 1321 and the second assembly portion 1322 are respectively located within the first opening OP1 and the second opening OP2. Thereby, the antenna structure 134, the first assembly portion 1321 and the second assembly portion 1322 can be properly configured in a limited space. The first assembly portion 1321 and / or the second assembly portion 132 are, for example, assembled with the housing of the device main body 110 or other components (such as keys), and the present invention does not limit this.

[0036] Please refer to Figure 2 , the electronic device 100 of this embodiment further includes a shielding structure 140 and an electronic component 150. The electronic component 150 is disposed within the device main body 110, and it is, for example, a central processing unit or other components that may generate interference signals. The shielding structure 140 made of a metal material is disposed within the device main body 110 and blocks between the antenna module 130 and the electronic component 150, thereby preventing the interference signals generated by the electronic component 150 from having an adverse effect on the antenna module 130. In an embodiment of the present invention, the shielding structure 140 is a conductive foam. In this embodiment, the touch display panel 112 of the device main body 110 is, for example, grounded through the shielding structure 140, and it is grounded to a ground plane G of the electronic device 100. In addition, in the antenna structure 134 of this embodiment, the grounding portion G extends to the fourth surface 132d and is coupled to the shielding structure 140 through the copper foil 134g4 to be grounded to the ground plane G through the shielding structure 140.

[0037] In addition, since the antenna module 130 of the present embodiment faces the touch display panel 112 (shown in Figure 2 ) with its fourth surface 132d, the area where the ground portion 134g is located on the side of the antenna module 130 close to the touch display panel 112 has no relation to the antenna radiation efficiency. Therefore, in this area, the antenna structure 134 can be configured to partially overlap with the touch sensing lines 112a of the touch display panel 112 (as shown in the overlapping area R, the width W8 is, for example, 0.4 mm) to save the configuration space.

[0038] In the present embodiment, a width W9 of the insulating frame 132 on the third surface 132c (marked in Figure 5A ) is, for example, 4.3 mm, a width W10 of the insulating frame 132 on the first surface 132a (marked in Figure 2 and Figure 5B ) is, for example, 9 mm, and a maximum length L3 of the antenna structure 134 (marked in Figure 5B ) is, for example, 75 mm. In addition, please refer to Figure 2 . In the present embodiment, a distance d3 between the shielding structure 140 and the edge of the device body 110 is, for example, 17 mm, a distance d4 between the touch display panel 112 and the edge of the device body 110 is, for example, 11.3 mm, a distance d5 between the touch display panel 112 and the antenna module 130 is, for example, 0.8 mm, a thickness T1 of the housing at the edge of the device body 110 is, for example, 1.5 mm, a height H of the internal accommodation space of the device body 110 is, for example, 5.1 mm, and a thickness T2 of the shielding structure 140 is, for example, 3 mm. In other embodiments, the above dimensions can be other appropriate values, and the present invention does not limit this.

[0039] Figure 6A and Figure 6B respectively show the voltage standing wave ratios (VSWR) of the antenna module of the present embodiment at different frequency bands. As shown in Figure 6A and Figure 6B , the voltage standing wave ratio of the antenna module 130 (marked in Figure 3 ) of the present embodiment can be less than or equal to 6 in the frequency band of 698 - 960 MHz, can be less than 3 in the frequency bands of 1427 - 2700 MHz and 3300 - 3800 MHz of the 5G frequency band, and can be less than 5.5 in the frequency band of 5150 - 5925 MHz. In addition, if there is a distance of 3 mm between the antenna structure 134 and another antenna 50 (for example, a Wifi antenna) as shown in Figure 3 and Figure 4 , the isolation degree between the two can be greater than -10 dB.

[0040] Figure 7A and Figure 7BThe antenna efficiencies of the antenna module according to this embodiment at different frequency bands are respectively shown. As Figure 7A and Figure 7B shown, the antenna efficiency of the antenna module 130 (marked in Figure 3 ) can reach -4.0 to -7.3 dBi in the 698 - 960 MHz frequency band, -4.3 to -5.9 dBi in the 1427 - 1610 MHz frequency band, -3.2 to -5.4 dBi in the 1710 - 2700 MHz frequency band, -4.1 to -6.1 dBi in the 3300 - 3800 MHz frequency band, and -4.2 to -6.4 dBi in the 5150 - 5925 MHz frequency band.

[0041] In summary, in the present invention, the antenna structure is disposed on the insulating frame to form a three - dimensional structure, and a plurality of slots are formed by its feeding portion, radiation portion, and grounding portion. The impedance matching of various frequency bands of the antenna module can be adjusted by changing the widths of the respective slots. Accordingly, a required variety of bandwidth ranges can be covered by a simple antenna structure in a limited configuration space. In addition, since the antenna module of the present invention can cover a variety of frequency bands from low frequency to high frequency, it can be applied to antenna signal processing units of various specifications. Thus, as long as different antenna signal processing units are replaced, the signal transceiver frequency band can be upgraded or changed without re - designing and replacing the antenna module, thereby saving the device cost.

Claims

1. An electronic device, characterized in that, Comprising: A device body; A processing unit disposed within the device body; And An antenna module disposed within the device body and comprising: An insulating frame having a first surface and a second surface, wherein the first surface faces the second surface; And An antenna structure including a feeding portion, a first radiation portion and a first extension portion, wherein the feeding portion includes a first feeding end, a conductive through hole and a second feeding end, the first feeding end is disposed on the first surface, the second feeding end is disposed on the second surface and is coupled to the processing unit, the conductive through hole penetrates the insulating frame to connect the first feeding end and the second feeding end, the first radiation portion is at least partially disposed on the first surface and is connected to the first feeding end, the first extension portion is disposed on the second surface and is connected to the first radiation portion, and a first slot is formed between the first extension portion and the second feeding end.

2. The electronic device according to claim 1, wherein A first opening is formed between the first extension portion and the first radiation portion, the insulating frame has a first assembling portion and is assembled to the device body through the first assembling portion, and the first assembling portion is located within the first opening.

3. The electronic device according to claim 1, characterized in that, The insulating frame has a third surface, the third surface is connected between the first surface and the second surface, and the first radiation portion extends from the first surface through the third surface to the second surface to connect the first extension portion.

4. The electronic device according to claim 3, characterized in that, The antenna structure includes a second radiation portion and a second extension portion, the second radiation portion is at least partially disposed on the third surface and is connected to the first radiation portion, and the second extension portion is disposed on the second surface and is connected to the second radiation portion.

5. The electronic device according to claim 4, characterized in that, A second opening is formed between the second extension portion and the second radiation portion, the insulating frame has a second assembling portion and is assembled to the device body through the second assembling portion, and the second assembling portion is located within the second opening.

6. The electronic device according to claim 1, wherein, The antenna structure includes a third radiation portion and a grounding portion, the third radiation portion is disposed on the first surface and is connected to the first feeding end and the first radiation portion, the grounding portion is disposed on the first surface and is connected to the first feeding end, and a second slot is formed between the third radiation portion and the grounding portion.

7. The electronic device according to claim 1, wherein The antenna structure includes a grounding portion, the grounding portion is disposed on the first surface and is connected to the first feeding end, the grounding portion includes two relatively bent sections, and a third slot is formed between the two sections.

8. The electronic device according to claim 1, characterized in that, The antenna structure includes a grounding portion, the grounding portion is disposed on the first surface, one section of the grounding portion is connected to the first feeding end, and a fourth slot is formed between the other section of the grounding portion and the first feeding end.

9. The electronic device according to claim 8, wherein, The other section of the grounding portion has at least one protruding portion, and the at least one protruding portion extends from the other section towards the first feeding end.

10. The electronic device according to claim 1, wherein Comprising a shielding structure and at least one electronic component, wherein the at least one electronic component is disposed within the device body, and the shielding structure is disposed within the device body to block between the antenna module and the at least one electronic component.

11. The electronic device according to claim 10, characterized in that, The antenna structure includes a grounding portion, the grounding portion is connected to the first feeding end and is coupled to the shielding structure to be grounded to a ground plane of the electronic device through the shielding structure.

12. An antenna module, characterized in that, Comprising: An insulating frame body has a first surface and a second surface, where the first surface faces the second surface; and An antenna structure includes a feeding part, a first radiation part, and a first extending part. The feeding part includes a first feeding end, a conductive through hole, and a second feeding end. The first feeding end is disposed on the first surface, the second feeding end is disposed on the second surface, the conductive through hole penetrates the insulating frame body and connects the first feeding end and the second feeding end. The first radiation part is at least partially disposed on the first surface and connected to the first feeding end. The first extending part is disposed on the second surface and connected to the first radiation part. A first slot is formed between the first extending part and the second feeding end.

13. The antenna module according to claim 12, characterized in that, A first opening is formed between the first extending part and the first radiation part. The insulating frame body has a first assembling part and is assembled to a device body through the first assembling part. The first assembling part is located within the first opening.

14. The antenna module according to claim 12, characterized in that, The insulating frame body has a third surface that connects between the first surface and the second surface. The first radiation part extends from the first surface through the third surface to the second surface to connect the first extending part.

15. The antenna module according to claim 14, characterized in that, The antenna structure includes a second radiation part and a second extending part. The second radiation part is at least partially disposed on the third surface and connected to the first radiation part. The second extending part is disposed on the second surface and connected to the second radiation part.

16. The antenna module according to claim 15, characterized in that, A second opening is formed between the second extending part and the second radiation part. The insulating frame body has a second assembling part and is assembled to a device body through the second assembling part. The second assembling part is located within the second opening.

17. The antenna module according to claim 12, wherein The antenna structure includes a third radiation part and a grounding part. The third radiation part is disposed on the first surface and connected to the first feeding end and the first radiation part. The grounding part is disposed on the first surface and connected to the first feeding end. A second slot is formed between the third radiation part and the grounding part.

18. The antenna module according to claim 12, wherein, The antenna structure includes a grounding part. The grounding part is disposed on the first surface and connected to the first feeding end. The grounding part includes two relatively bent sections, and a third slot is formed between the two sections.

19. The antenna module according to claim 12, characterized in that, The antenna structure includes a grounding part. The grounding part is disposed on the first surface. One section of the grounding part is connected to the first feeding end, and a fourth slot is formed between the other section of the grounding part and the first feeding end.

20. The antenna module according to claim 19, wherein, The other section of the grounding part has at least one protruding part that extends from the other section towards the first feeding end.

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